Mohammed Abdalla Ayoub Mohammed, Mohamed Talballa Elsheikh
In this study, a winding process for sixteen E-fiberglass composite tube was made. Before the processing, fiber had been tested for tensile strength for E-fiberglass and carbon fiber. Nine polymer matrix laboratory scale were made and analyzed using thermal gravimetric analysis (TG), and differential scanning calorimetry (DSC). Fourteen wounded tubes were tested for burst pressure using hydrostatic test, to measure the performance winding process, matrix material, and winding angle patterns. The pattern (±45)6, 90, with resins EPN 1338 and E44, with curing agent DJ651 gives the best burst pressure, which was 11.3 MPa. The two last tubes were tested for high temperature using 85g black powder for the first tube, and 250g for the second one, producing pressure about 1.38 MPa, and 5.23 MPa for the first and the second tube respectively. Even with increasing black powder amount three times, the yielding pressure increased about 3.8 times in the second tube, while the composite tube outer temperature for the first and the second one was 48°C, and 71°C respectively, which just increased about one-half times.
{"title":"Manufacturing of High-Pressure Temperature Composite Tube using Filament Winding","authors":"Mohammed Abdalla Ayoub Mohammed, Mohamed Talballa Elsheikh","doi":"10.54388/jkues.v1i2.27","DOIUrl":"https://doi.org/10.54388/jkues.v1i2.27","url":null,"abstract":"In this study, a winding process for sixteen E-fiberglass composite tube was made. Before the processing, fiber had been tested for tensile strength for E-fiberglass and carbon fiber. Nine polymer matrix laboratory scale were made and analyzed using thermal gravimetric analysis (TG), and differential scanning calorimetry (DSC). Fourteen wounded tubes were tested for burst pressure using hydrostatic test, to measure the performance winding process, matrix material, and winding angle patterns. The pattern (±45)6, 90, with resins EPN 1338 and E44, with curing agent DJ651 gives the best burst pressure, which was 11.3 MPa. The two last tubes were tested for high temperature using 85g black powder for the first tube, and 250g for the second one, producing pressure about 1.38 MPa, and 5.23 MPa for the first and the second tube respectively. Even with increasing black powder amount three times, the yielding pressure increased about 3.8 times in the second tube, while the composite tube outer temperature for the first and the second one was 48°C, and 71°C respectively, which just increased about one-half times.","PeriodicalId":129247,"journal":{"name":"Journal of Karary University for Engineering and Science","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115607691","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Risk management is particularly important at the present time and constitute a new approach in firms, has seen all industries acceleration and great changes in recent years, in order to benefit from risk management to provide protection for firms and continuity performance its activities should provide the critical success factors for risk management. The research problem is represented in the role of risk management on the performance of industrial firms in Sudan, the research aims to deepen the understanding of risk management and its application to firms and to know the reasons that led to the failure and faltering of the performance of these firms as well as finding appropriate solutions ,The researcher used the descriptive-analytical method in conducting this study and designed a questionnaire as the main tool for data collection, This research develops through the assumption that there is a positive relationship between risk management and the performance of the firm where the study found that risk management practices are applied in moderate proportions by the leaders and employees of the Sudanese industrial firms and dominated by the reactive method rather than proactive, One of the most important recommendations of the study is that industrial organizations have to adopt effective systems for managing organizational risks and that they be monitored and reviewed for deviations in order to be in line with the strategy of the firm.
{"title":"Study of the Effect of Risk Management Application on the Performance of Giad industrial Group","authors":"Yassin Assadig ALI AHMED","doi":"10.54388/jkues.v1i2.50","DOIUrl":"https://doi.org/10.54388/jkues.v1i2.50","url":null,"abstract":"Risk management is particularly important at the present time and constitute a new approach in firms, has seen all industries acceleration and great changes in recent years, in order to benefit from risk management to provide protection for firms and continuity performance its activities should provide the critical success factors for risk management. The research problem is represented in the role of risk management on the performance of industrial firms in Sudan, the research aims to deepen the understanding of risk management and its application to firms and to know the reasons that led to the failure and faltering of the performance of these firms as well as finding appropriate solutions ,The researcher used the descriptive-analytical method in conducting this study and designed a questionnaire as the main tool for data collection, This research develops through the assumption that there is a positive relationship between risk management and the performance of the firm where the study found that risk management practices are applied in moderate proportions by the leaders and employees of the Sudanese industrial firms and dominated by the reactive method rather than proactive, One of the most important recommendations of the study is that industrial organizations have to adopt effective systems for managing organizational risks and that they be monitored and reviewed for deviations in order to be in line with the strategy of the firm.","PeriodicalId":129247,"journal":{"name":"Journal of Karary University for Engineering and Science","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114349329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Malik Eltahir Elhadi, A. Abdelsalam, Abdelnasir Mohammed Zain
This paper presents a proposed new design of a forging die used for producing the forged tube of a rocket launcher. In the practiced technology for producing as the forged tube many problems raised as a result of the selection of the parting line (P.L.) at the upper tangent of the circular cross-section of the product, which resulted in a semi-parabolic cross- section that causes some technical mishaps which can be summarized in the following points: the large amount of raw material lost as turning chips during the turning process of the machined tube; The high consumption rate of tools during the turning process of the machined tube; damage caused by rough turning lathe machine as a result of the high vibrations due to turning of a non-cylindrical profiles and the short life-time of the forging die due to its embracing of the majority of the volume of the forge tube. In the proposed design the parting line (P.L.) will be located in the mid-section of the circular cross-section of the product (the forged tube) in order to solve these problems .This led to a design of a new set of hammering dies and subsequently a set of trimming dies by applying the standard design considerations and with the help of the CAD/CAM package software: ”VISI-15”. The proposed design differs significantly from the upsetting forging which have a parting line perpendicular to the longitudinal rolling direction of the forged product. When using the new designed dies, the saving in an input raw material (weapon steel) is estimated to reach up to 5 kilograms per forged tube. This became a considerable saving in the annual production cost. Minimizing the handling weight of the forged tube (from 16 Kg/Piece to 5 Kg/Piece) during the production processes results in a relatively less man power effort compared with the practiced technology. Besides the minimization of the consumption rate of the cutting tools and the rate of the replacement of the rough turning machines
{"title":"Improvement of the Design of Rocket Propelled Granite (RPG.7) Main Tubes Forging Dies","authors":"Malik Eltahir Elhadi, A. Abdelsalam, Abdelnasir Mohammed Zain","doi":"10.54388/jkues.v1i2.69","DOIUrl":"https://doi.org/10.54388/jkues.v1i2.69","url":null,"abstract":"This paper presents a proposed new design of a forging die used for producing the forged tube of a rocket launcher. In the practiced technology for producing as the forged tube many problems raised as a result of the selection of the parting line (P.L.) at the upper tangent of the circular cross-section of the product, which resulted in a semi-parabolic cross- section that causes some technical mishaps which can be summarized in the following points: the large amount of raw material lost as turning chips during the turning process of the machined tube; The high consumption rate of tools during the turning process of the machined tube; damage caused by rough turning lathe machine as a result of the high vibrations due to turning of a non-cylindrical profiles and the short life-time of the forging die due to its embracing of the majority of the volume of the forge tube. In the proposed design the parting line (P.L.) will be located in the mid-section of the circular cross-section of the product (the forged tube) in order to solve these problems .This led to a design of a new set of hammering dies and subsequently a set of trimming dies by applying the standard design considerations and with the help of the CAD/CAM package software: ”VISI-15”. The proposed design differs significantly from the upsetting forging which have a parting line perpendicular to the longitudinal rolling direction of the forged product. When using the new designed dies, the saving in an input raw material (weapon steel) is estimated to reach up to 5 kilograms per forged tube. This became a considerable saving in the annual production cost. Minimizing the handling weight of the forged tube (from 16 Kg/Piece to 5 Kg/Piece) during the production processes results in a relatively less man power effort compared with the practiced technology. Besides the minimization of the consumption rate of the cutting tools and the rate of the replacement of the rough turning machines","PeriodicalId":129247,"journal":{"name":"Journal of Karary University for Engineering and Science","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132546085","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The aim of this work is to prepare five samples of Polymer Bonded Explosives (PBXs) with various percent of Isoprene Rubber (IR) and Cyclotrimethylenetrinitramine (RDX) (RDX /IR), based on Sulfur Vulcanization process, and applying them on warheads as insensitive explosive. Density, sensitivity to impact, and ignition temperature have been tested. Mixer water path which used for the manufacturing of plastic bonded explosives (PBXs) (capacity 5 L), Filling was made by casting methods, Filling in C-8 rocket warhead. The killing range of the C-8 (IR-RDX) was 18 meters.
{"title":"Preparation and Characterization of Polymer bonded Explosives Based on Isoprene Rubber","authors":"Moammer Noreldeen, Muzamil Ahmed, Mohamed Abdelgadir Abdalla Mohammed, Mohamed Fadllala Karar","doi":"10.54388/jkues.v1i2.79","DOIUrl":"https://doi.org/10.54388/jkues.v1i2.79","url":null,"abstract":"The aim of this work is to prepare five samples of Polymer Bonded Explosives (PBXs) with various percent of Isoprene Rubber (IR) and Cyclotrimethylenetrinitramine (RDX) (RDX /IR), based on Sulfur Vulcanization process, and applying them on warheads as insensitive explosive. Density, sensitivity to impact, and ignition temperature have been tested. Mixer water path which used for the manufacturing of plastic bonded explosives (PBXs) (capacity 5 L), Filling was made by casting methods, Filling in C-8 rocket warhead. The killing range of the C-8 (IR-RDX) was 18 meters.","PeriodicalId":129247,"journal":{"name":"Journal of Karary University for Engineering and Science","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133883386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Acidic wastewater treatment for the TNT factory which located in the middle of the mountains is characterized by part of its nature with alkaline properties, which prompted the researcher to take advantage of it in the treatment of acidic water instead of caustic soda. Acidic waste water is originated from spent acid treatment building, nitration, purification building, drying and packing building in TNT factory. The objective of this study is to use treated Acidic water TNT Factory by rock granules. Acidic waste water is mixed together with rock granules lye after crushed process of these rocks. The results the pH value of water after neutralizing reaction showed a significant rise in pH from 1.20 to 7. 00. This is within the SSMO. These data included reduction in BOD from 30.00 to 7.00 mg/l which is also within the range of SSMO. The COD value of the acidic wastewater which is 65.00 mg/l to 11 mg/l which is also within the range of SSMO. The use of rock granules for treatment will save an amount 9.45kg/t of caustic soda per ton of product TNT product.
{"title":"The neutralizing of Acidic Wastewater Produced From Trinitrotoluene (TNT) Factory by Rock granules","authors":"Hisham Dafa Alla ali Mahjoub","doi":"10.54388/jkues.v1i2.54","DOIUrl":"https://doi.org/10.54388/jkues.v1i2.54","url":null,"abstract":"Acidic wastewater treatment for the TNT factory which located in the middle of the mountains is characterized by part of its nature with alkaline properties, which prompted the researcher to take advantage of it in the treatment of acidic water instead of caustic soda. Acidic waste water is originated from spent acid treatment building, nitration, purification building, drying and packing building in TNT factory. The objective of this study is to use treated Acidic water TNT Factory by rock granules. Acidic waste water is mixed together with rock granules lye after crushed process of these rocks. The results the pH value of water after neutralizing reaction showed a significant rise in pH from 1.20 to 7. 00. This is within the SSMO. These data included reduction in BOD from 30.00 to 7.00 mg/l which is also within the range of SSMO. The COD value of the acidic wastewater which is 65.00 mg/l to 11 mg/l which is also within the range of SSMO. The use of rock granules for treatment will save an amount 9.45kg/t of caustic soda per ton of product TNT product.","PeriodicalId":129247,"journal":{"name":"Journal of Karary University for Engineering and Science","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116042465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
E. T. Yousif, Rasha Abd Elrahman, Muaaz Abdulrahem Ibrahem
Landing process accomplished in major phases: The glide path phase and the finishing flare manoeuvre. With rapid advances in instrument landing systems (ILS), aircraft became able to operate safely in weather conditions with restricted visibility. Automatic landing facing problems such as: losing ground signals, and landing on airports un-equipped with ground signals during bad weather. The main goals of this paper are using airplane – runway geometry and the flight angle to generate the control commands, and design a spatial PID controller that maintains the aircraft fling along the glide path flowed by the flare and the touching down to the desired runway position. The controller controls the airplane longitudinal motion, lateral motion to get the safe glide path angle. The PID controller continuously updates the coordinates and sends control signals to update the airplane position to attain the safest landing. Results showed that the PID controller was successfully designed for this type of instrument landing system, this design has performed good response and the landing is safer
{"title":"Modeling and Simulation of Geometric Automatic Landing System","authors":"E. T. Yousif, Rasha Abd Elrahman, Muaaz Abdulrahem Ibrahem","doi":"10.54388/jkues.v1i2.36","DOIUrl":"https://doi.org/10.54388/jkues.v1i2.36","url":null,"abstract":"Landing process accomplished in major phases: The glide path phase and the finishing flare manoeuvre. With rapid advances in instrument landing systems (ILS), aircraft became able to operate safely in weather conditions with restricted visibility. Automatic landing facing problems such as: losing ground signals, and landing on airports un-equipped with ground signals during bad weather. The main goals of this paper are using airplane – runway geometry and the flight angle to generate the control commands, and design a spatial PID controller that maintains the aircraft fling along the glide path flowed by the flare and the touching down to the desired runway position. The controller controls the airplane longitudinal motion, lateral motion to get the safe glide path angle. The PID controller continuously updates the coordinates and sends control signals to update the airplane position to attain the safest landing. Results showed that the PID controller was successfully designed for this type of instrument landing system, this design has performed good response and the landing is safer","PeriodicalId":129247,"journal":{"name":"Journal of Karary University for Engineering and Science","volume":"146 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129631056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The aim of this paper is to study the possibility of localizing the manufacturing of heat insulator for thermoplastic Composite propellant which plays an important role in modern warfare. The Original heat insulator had been tested and the mechanical properties were determined to take them as a reference results for the new one in working different formulation. The heat insulation materials which used are silicon dioxide, Titanium dioxide, Antimony tri oxide, calcium carbonate and talk powder. It was seen that, the using of the above materials grand good results in the first testing stage. When the heat insulator used in the production processes some remarks were appeared, such as the flow by heat during homogenizing process. One of the formulations suggested and tested, was passed all the production processes and tests in the real product and grant excellent results compared with the Original heat insulator. The erosion rate for local insulator was 0.36mm/s while the erosion rate for the Original one is 0.37mm/s. This work proved that, the production of heat insulator for Thermoplastic composite propellants can be localized successfully.
{"title":"Study and Manufacturing of Heat Insulator for Thermoplastic Composite Propellant","authors":"Omer Elamin Hamad, Nagmeldin Elamin","doi":"10.54388/jkues.v1i2.34","DOIUrl":"https://doi.org/10.54388/jkues.v1i2.34","url":null,"abstract":"The aim of this paper is to study the possibility of localizing the manufacturing of heat insulator for thermoplastic Composite propellant which plays an important role in modern warfare. The Original heat insulator had been tested and the mechanical properties were determined to take them as a reference results for the new one in working different formulation. The heat insulation materials which used are silicon dioxide, Titanium dioxide, Antimony tri oxide, calcium carbonate and talk powder. It was seen that, the using of the above materials grand good results in the first testing stage. When the heat insulator used in the production processes some remarks were appeared, such as the flow by heat during homogenizing process. One of the formulations suggested and tested, was passed all the production processes and tests in the real product and grant excellent results compared with the Original heat insulator. The erosion rate for local insulator was 0.36mm/s while the erosion rate for the Original one is 0.37mm/s. This work proved that, the production of heat insulator for Thermoplastic composite propellants can be localized successfully.","PeriodicalId":129247,"journal":{"name":"Journal of Karary University for Engineering and Science","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127746354","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This study aimed to find an additional analytical reference procedure to verify the accuracy of single beam Spectrophotometer results that used to determine the concentration of nitro compound pollutants such as TNT, DNT, and MNT (Tri Nitro Toluene, Di Nitro toluene, and Mono Nitro Toluene respectively) in treated acidic wastewater generated from TNT manufacturing. This procedure was tested and confirmed to be a reference for a single-beam spectrophotometer. In this study 10 samples with known concentrations were taken and prepared for colorimetric analysis, the concentrations gradient from 10mg/L up to 60mg/L to make a ruler with gradient color, this ruler was suitable for high concentration samples but to specify the low concentration samples the procedure depended on adding a known concentration to the unknown concentration sample then this added concentration transferred the samples from unspecified color to specified color on the ruler consisted by known concentration mentioned above, the concentration of unknown concentration samples were specified by taking the concentration corresponding to the ruler color a subtracting the value of added concentration and the value of the remains was sample concentration. This study proved the reliability of this procedure to confirm single-beam spectrophotometer results, determining low concentration value of unknown concentration sample of TNT acidic wastewater, and then it can be used as a substituent of spectrophotometer in the event of malfunctions.
{"title":"Color ruler to confirm spectrophotometer results for nitro compound content in acidic wastewater from TNT processes","authors":"A. Mahjoub, Osman Eltayeb","doi":"10.54388/jkues.v1i2.112","DOIUrl":"https://doi.org/10.54388/jkues.v1i2.112","url":null,"abstract":"This study aimed to find an additional analytical reference procedure to verify the accuracy of single beam Spectrophotometer results that used to determine the concentration of nitro compound pollutants such as TNT, DNT, and MNT (Tri Nitro Toluene, Di Nitro toluene, and Mono Nitro Toluene respectively) in treated acidic wastewater generated from TNT manufacturing. This procedure was tested and confirmed to be a reference for a single-beam spectrophotometer. In this study 10 samples with known concentrations were taken and prepared for colorimetric analysis, the concentrations gradient from 10mg/L up to 60mg/L to make a ruler with gradient color, this ruler was suitable for high concentration samples but to specify the low concentration samples the procedure depended on adding a known concentration to the unknown concentration sample then this added concentration transferred the samples from unspecified color to specified color on the ruler consisted by known concentration mentioned above, the concentration of unknown concentration samples were specified by taking the concentration corresponding to the ruler color a subtracting the value of added concentration and the value of the remains was sample concentration. This study proved the reliability of this procedure to confirm single-beam spectrophotometer results, determining low concentration value of unknown concentration sample of TNT acidic wastewater, and then it can be used as a substituent of spectrophotometer in the event of malfunctions.","PeriodicalId":129247,"journal":{"name":"Journal of Karary University for Engineering and Science","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128336784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ammonium nitrate is a promising rocket propellant oxidizer. It is present as the major component in most industrial explosives. Due to the surface polarity of ammonium nitrate, the particles can easy absorb moisture. In this study, ammonium nitrate particles were coated by cetylalcohol surfactant in order to reduce the hygroscopicity. The optimized physical coating process using cetylalcohol was achieved by (L9 (34 )) Taguchi orthogonal array (TOA).The analysis of TOA revealed that the highest decline of absorption rate was 35.45% with the mass ratio of coating layer was 0.95%. Scanning electron microscopy (SEM) was used to characterize the surface of coated and uncoated ammonium nitrate. The idea and approach presented in this study can help the researchers to improving anti-hygroscopicity of ammonium nitrate.
{"title":"Application of Surfactant Material as Anti-hygroscopicity agent for Ammonium Nitrate (NH4NO3)","authors":"Baha I. Elzaki","doi":"10.54388/jkues.v1i2.104","DOIUrl":"https://doi.org/10.54388/jkues.v1i2.104","url":null,"abstract":"Ammonium nitrate is a promising rocket propellant oxidizer. It is present as the major component in most industrial explosives. Due to the surface polarity of ammonium nitrate, the particles can easy absorb moisture. In this study, ammonium nitrate particles were coated by cetylalcohol surfactant in order to reduce the hygroscopicity. The optimized physical coating process using cetylalcohol was achieved by (L9 (34 )) Taguchi orthogonal array (TOA).The analysis of TOA revealed that the highest decline of absorption rate was 35.45% with the mass ratio of coating layer was 0.95%. Scanning electron microscopy (SEM) was used to characterize the surface of coated and uncoated ammonium nitrate. The idea and approach presented in this study can help the researchers to improving anti-hygroscopicity of ammonium nitrate.","PeriodicalId":129247,"journal":{"name":"Journal of Karary University for Engineering and Science","volume":"84 16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130748273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mustafa Ahmed, Majdi Abdlrazig, Mohamed Fadllala Karar, A. Mahjoub
Dealing with ammunition fuzes is a high-risk task due to the inclusion of high sensitive explosive materials that may explode if not treated with care. In this work, the design and manufacturing of a disassembly device were explained. The device is based ona pneumatic system to improve safety in a process attached to highly sensitive explosive materials. The design was implemented using different manufacturing processes such as milling, lathe, and CNC machines in addition to welding. The disassembly operation was accomplished using a predetermined amount of air, and speed controlled from one hundred meters. The device is useful in production and R&D processes as it saves the time of disassembly and reduces the explosion risk.
{"title":"Design and Manufacturing of a Fuze Disassembly Device","authors":"Mustafa Ahmed, Majdi Abdlrazig, Mohamed Fadllala Karar, A. Mahjoub","doi":"10.54388/jkues.v1i2.100","DOIUrl":"https://doi.org/10.54388/jkues.v1i2.100","url":null,"abstract":"Dealing with ammunition fuzes is a high-risk task due to the inclusion of high sensitive explosive materials that may explode if not treated with care. In this work, the design and manufacturing of a disassembly device were explained. The device is based ona pneumatic system to improve safety in a process attached to highly sensitive explosive materials. The design was implemented using different manufacturing processes such as milling, lathe, and CNC machines in addition to welding. The disassembly operation was accomplished using a predetermined amount of air, and speed controlled from one hundred meters. The device is useful in production and R&D processes as it saves the time of disassembly and reduces the explosion risk. ","PeriodicalId":129247,"journal":{"name":"Journal of Karary University for Engineering and Science","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133863316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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