(Đồ án hcmute) research and design 8 cavities injection plastic mold of the laundry detergent closures for practical application

MINISTRY OF EDUCATION AND TRAINING HO CHI MINH CITY UNIVERSITY OF TECHNOLOGY AND EDUCATION FACULTY FOR HIGH QUALITY TRAINING GRADUATION PROJECT MAJOR MECHANICAL ENGINEERING RESEARCH AND DESIGN CAVITIES INJECTION PLASTIC MOLD OF THE LAUNDRY DETERGENT CLOSURES FOR PRACTICAL APPLICATION ADVISOR: DR VO XUAN TIEN TRAN TAN KIET STUDENT: BUI THI KHOI AN NGUYEN THANH TAM SKL009922 Ho Chi Minh city, February 2023 HO CHI MINH CITY UNIVERSITY OF TECHNOLOGY AND EDUCATION FACULTY FOR HIGH-QUALITY TRAINING GRADUATION PROJECT RESEARCH AND DESIGN CAVITIES INJECTION PLASTIC MOLD OF THE LAUNDRY DETERGENT CLOSURES FOR PRACTICAL APPLICATION BUI THI KHOI AN STUDENT ID: 18144001 NGUYEN THANH TAM STUDENT ID: 18144048 Major: MECHANICAL ENGINEERING Advisor: VO XUAN TIEN, Ph.D TRAN TAN KIET Ho Chi Minh City, February 2023 HO CHI MINH CITY UNIVERSITY OF TECHNOLOGY AND EDUCATION FACULTY FOR HIGH-QUALITY TRAINING GRADUATION PROJECT RESEARCH AND DESIGN CAVITIES INJECTION PLASTIC MOLD OF THE LAUNDRY DETERGENT CLOSURES FOR PRACTICAL APPLICATION BUI THI KHOI AN STUDENT ID: 18144001 NGUYEN THANH TAM STUDENT ID: 18144048 Major: MECHANICAL ENGINEERING Advisor: VO XUAN TIEN, Ph.D TRAN TAN KIET Ho Chi Minh City, February 2023 i THE SOCIALIST REPUBLIC OF VIETNAM Independence – Freedom– Happiness Ho Chi Minh City, February 10, 2023 GRADUATION PROJECT ASSIGNMENT Student name: Bui Thi Khoi An Student ID: 18144001 Student name: Nguyen Thanh Tam Student ID: 18144048 Major: Mechanical Engineering Class: 18144CLA Advisor: Ph.D Vo Xuan Tien Phone number: 0917556700 Date of assignment: 9/2022 Date of submission: 2/2023 Project title: RESEARCH AND DESIGN CAVITIES INJECTION PLASTIC MOLD OF THE LAUNDRY DETERGENT CLOSURES FOR PRACTICAL APPLICATION Initial materials provided by the advisor: - Sample product of a detergent bottle closure made of plastic PP126NK - Using PP126NK or PP plastic material with equivalent function - Three-plate mold with cavities, million shots warranty - Using the plastic injection machine labelled CLF 120 or equivalent Content of the project: - Inverse designing the laundry detergent closure Researching on plastic, mold materials, heat treatments, mold parts, plastic injection machine, etc Designing 2D mold layout, list of parts Calculating runners, cooling system, injecting force, ejecting space, etc Designing 3D mold parts, assembling Simulation Writing report Final product: - Set of drawings with detailed mold parts, structures, spare parts, billets, products Report CHAIR OF THE PROGRAM ADVISOR (Sign with full name) (Sign with full name) ii THE SOCIALIST REPUBLIC OF VIETNAM Independence – Freedom– Happiness Ho Chi Minh City, February 8, 2023 ADVISOR’S EVALUATION SHEET Student name: Bui Thi Khoi An Student ID: 18144001 Student name: Nguyen Thanh Tam Student ID: 18144048 Major: Mechanical Engineering Project title: RESEARCH AND DESIGN CAVITIES INJECTION PLASTIC MOLD OF THE LAUNDRY DETERGENT CLOSURES FOR PRACTICAL APPLICATION Advisor: Ph.D Vo Xuan Tien EVALUATION Content and workload of the project Strengths: Weaknesses: Approval for oral defense? (Approved or denied) Overall evaluation: (Excellent, Good, Fair, Poor) Mark:……………….(in words: ) Ho Chi Minh City, February 8, 2023 ADVISOR (Sign with full name) iii THE SOCIALIST REPUBLIC OF VIETNAM Independence – Freedom– Happiness Ho Chi Minh City, February 10, 2023 PRE-DEFENSE EVALUATION SHEET Student name: Bui Thi Khoi An Student ID: 18144001 Student name: Nguyen Thanh Tam Student ID: 18144048 Major: Mechanical Engineering Project title: RESEARCH AND DESIGN CAVITIES INJECTION PLASTIC MOLD OF THE LAUNDRY DETERGENT CLOSURES FOR PRACTICAL APPLICATION Name of Reviewer: Ph.D Tran Minh The Uyen EVALUATION Content and workload of the project Strengths: Weaknesses: Approval for oral defense? (Approved or denied) Overall evaluation: (Excellent, Good, Fair, Poor) Mark:……………….(in words: ) Ho Chi Minh City, February 10, 2023 REVIEWER (Sign with full name) iv THE SOCIALIST REPUBLIC OF VIETNAM Independence – Freedom– Happiness Ho Chi Minh City, February 18, 2023 EVALUATION SHEET OF DEFENSE COMMITTEE MEMBER Student name: Bui Thi Khoi An Student ID: 18144001 Student name: Nguyen Thanh Tam Student ID: 18144048 Major: Mechanical Engineering Project title: RESEARCH AND DESIGN CAVITIES INJECTION PLASTIC MOLD OF THE LAUNDRY DETERGENT CLOSURES FOR PRACTICAL APPLICATION Name of Defense Committee Member: Assoc Prof Pham Son Minh, PhD Tran Van Tron , PhD Tran Minh The Uyen, M.Eng Nguyen Thanh Tan, M.Eng Dang Minh Phung, EVALUATION Content and workload of the project Strengths: Weaknesses: Approval for oral defense? (Approved or denied) Overall evaluation: (Excellent, Good, Fair, Poor) Mark:……………….(in words: ) Ho Chi Minh City, February 18, 2023 COMMITTEE MEMBER (Sign with full name) v Acknowledgments We would like to express our deepest gratitude to Ph.D Tien Vo Xuan, who gave us a chance to experience the internship program at Duy Tan Precision Mold Co., Ltd From there, we have been raising and expanding our knowledge in plastic injection mold Besides, we could not have undertaken this journey without Mr Kiet Tran Tan, who has always been thoughtful and patient We also would like to extend our sincere thanks to Ho Chi Minh City University of Technology and Education, the Faculty of High-Quality Training lecturers, and the Faculty of Mechanical Engineering for the thorough instructions in the previous four years We have been gaining major knowledge from nothing and becoming the ones who are wellbehaved, confident, and independent Lastly, we would like to show our gratitude to our parents, classmates, and acquaintances who have encouraged and supported us in this project and our academic journey vi Abstract The specific goal of this study was to design an injection mold for the product that would comply with the requirements and specifications outlined by the business Employing an artificially balanced runner to provide better-filling results in cavities These results are based on the findings of pressure at P/V switchover and fill time in Moldflow analysis Two adjustments were taken from a typical balanced H-type runner system and put through the process of analysis A pneumatic system layout inside the core inserts with a doublestage ejector improves the ejection system by lessening the vacuum force that would otherwise distort the product during ejection vii Table of Contents GRADUATION PROJECT ASSIGNMENT ii ADVISOR’S EVALUATION SHEET iii PRE-DEFENSE EVALUATION SHEET iv EVALUATION SHEET OF v DEFENSE COMMITTEE MEMBER v Acknowledgments vi Abstract vii Table of Contents viii List of Figures xi List of Tables xv Keyword xv Chapter INTRODUCTION 1.1 Overview 1.2 Objective 1.3 Study restrictions 1.4 Research methods 1.5 Research subject and scope of the report 1.6 Outline Chapter 2.1 2.2 Plastic Material 2.1.1 Nature of plastics 2.1.2 Melt Flow Index MFI/MI 2.1.3 Treatments of materials Required surface gloss 2.2.1 2.3 TECHNICAL KNOWLEDGE Factors influence the selection of plastic material 10 Injection Machine 10 2.3.1 Overview of plastic injection machine 10 2.3.2 Machine categories 11 viii ±0.2 26 65-0.01 0.16 4H-M8x1.25 237 51 162 147 147 400 8Ø72 Holes Ø12 25 y x +0.05 Ø70 55 +0.02 C2x15° +0.02 15 20 2H-R(PT)1/4 45 R50.5 Holes Ø22 162 Ø59 Ø50.55 Ø45.2 157 100 50 150 157 237 B +0.02 80 A +0.02 +0.02 60 38 8H-M6x1 25 +0.02 200±0.01 Holes Ø68 115 127 147 155 Ø25.1 +0.02 4xØ48 Ø41 4H-Ø30 32H-M5x0.8 91.65 31° A 147 162 162 B 4H-Ø30 275±0.01 237 Ø22 157 4Ø24 28 95 100 155 C20 2MM EDGE 3x3mm 199 235 4H-Ø45 22.2 SECTION B-B Vent channel 10 0.5 +0.02 550 13.5 +0.3 43+0.1 +0.3 51+0.1 Ø25 4H-M8x1.25 SECTION A-A 2H-Ø38 8.5 Graduation Thesis Technical requirements: - Chamfer remain edges: 1x1mm - Chamfer remain holes: 1x1 mm Research and design cavities injection plastic mold of the laundry detergent closures for practical application Name General Tolerance Linear Angular Drawn Ng T Tam X ±0.2 X ±1° Reviewer Tran Tan Kiet X.X ±0.1 X.X ±0.5° Approver X.XX ±0.05 Sign Date 7/2/23 1006-Core plate 01 Materials: S50C Hardness: 180~220HB Scale: 7:20 Mass: 84.5Kg Sheet of 21 Quantity: 01 HCMC University of Technology and Education Faculty of High Quality Training 18144001 - 18144048 Class: 18144CLA 26 237 157 50 100 B 150 157 197 237 20 20 40-0.01 0.16 165 162 147 147 +0.05 R30 15 20 145 4H-R(PT)1/4 115 27.5 Holes Ø22 162 55 R16 y 400 13H-M16x2 Holes Ø12 x 2H-Ø25 +0.2 200±0.01 4H-Ø45 Holes Ø30 127 +0.02 Holes Ø35 147 155 +0.2 11.5 +0.02 +0.02 50 +0.02 Holes Ø10 Ø11 A Ø52 +0.02 Ø51 +0.02 Holes Ø60 +0.02 80 27.2 100 Holes Ø20 R13.5 147 A 162 SECTION B-B 237 215 157 150 100 B R5 95 155 199 C20 2MM EDGE 3x3mm 235 162 165 275±0.01 550 +0.3 8+0.1 SECTION A-A 10 +0.02 80 Technical requirements: - Chamfer remain edges: 1x1mm - Chamfer remain holes: 1x1 mm Graduation Thesis Research and design cavities injection plastic mold of the laundry detergent closures for practical application Name General Tolerance Linear Angular Drawn Ng T Tam X ±0.2 X ±1° Reviewer Tran Tan Kiet X.X ±0.1 X.X ±0.5° Approver X.XX ±0.05 Sign Date 7/2/23 1007-Core plate 02 Materials: S50C Hardness: 180~220HB Scale: 2:5 Mass: 53.7Kg Sheet of 21 Quantity: 01 HCMC University of Technology and Education Faculty of High Quality Training 18144001 - 18144048 Class: 18144CLA 10 20 25 237 157 157 197 237 50-0.2 0.16 162 162 R11 147 Ø39 Ø25 Holes Ø16 Holes Ø25 400 2M8 Holes Ø22 15 20 Holes Ø6 10 2H-R(PT)1/4 147 y 13 Holes Ø29 x 2H-M20x2.5 429 +0.02 200±0.01 55 Holes Ø42 Holes Ø10 Holes Ø11 A 4H-Ø30 125 147 100 A 127 162 147 237 199 157 50 50 150 275±0.01 100 150 155 215 550 20 C20 2MM EDGE 3x3mm 4Ø45 235 162 +0.3 11+0.1 SECTION A-A +0.3 8+0.1 18 Technical requirements: - Chamfer remain edges: 1x1mm - Chamfer remain holes: 1x1 mm Graduation Thesis Research and design cavities injection plastic mold of the laundry detergent closures for practical application Name General Tolerance Linear Angular Drawn Ng T Tam X ±0.2 X ±1° Reviewer Tran Tan Kiet X.X ±0.1 X.X ±0.5° Approver X.XX ±0.05 Sign Date 7/2/23 1008-Base clamping plate Materials: S50C Hardness: 180~220HB Scale: 2:5 Mass: 78Kg Sheet 10 of 21 Quantity: 01 HCMC University of Technology and Education Faculty of High Quality Training 18144001 - 18144048 Class: 18144CLA 0.16 +0.03 15+0.01 C0.5 R6 +0.1 SECTION A-A Ø120 2H-M6x1 Ø70 y -0.1 140-0.2 x A A Holes Ø8 R5 52.5 135 45 -0.1 320-0.2 Graduation Thesis Technical requirements: - Chamfer remain edges: 1x1mm - Chamfer remain holes: 0.5x0.5 mm Research and design cavities injection plastic mold of the laundry detergent closures for practical application Name General Tolerance Linear Angular Drawn Ng T Tam X ±0.2 X ±1° Reviewer Tran Tan Kiet X.X ±0.1 X.X ±0.5° Approver X.XX ±0.05 Sign Date 7/2/23 1009-Stationnary insert plate Materials: S50C Hardness: 180~220HB Scale: 1:1 Mass: 4.4Kg Sheet 11 of 21 Quantity: 01 HCMC University of Technology and Education Faculty of High Quality Training 18144001 - 18144048 Class: 18144CLA 0.16 Dry Blast # 240 Oxide Grade #15, 1200 Grit Diamond Buff 1.6 0.05 28.55 -0.005 Ø79-0.02 10.2 R1 ° 89 A 2.5-0.1 R0.2 +0.2 2.6 0 1.5-0.1 R0.2 R2.5 R2 C0.5 4.6 0.35 2.5 R10 2-R0.4 +0.2 3.2 2.5-0.1 R2 +0.02 2.31 SinØ3 +0.2 50 +0.2 4.1 43.48 B D 42.37±0.01 B 52.2 A 39.7 6-0.02 9.5 60 +0.02 20.7 C1 19 C Ø45.07±0.02 +0.02 13.15 R0.2 -0.005 77-0.02 56.39±0.02 SECTION A-A 6x120° 0.32 C(5:1) E Ø3.34±0.05 16.04 Ø5.5 Ø5.5 31 17.43 41-0.1 -0.05 39.5 30° E(10:1) 3° 14.35 Ø8 Ø86-0.1 SECTION B-B Ø0.9±0.03 0.2±0.05 Ø2.5 D-D(4:1) Technical requirements: - Chamfer remain edges: 0.5x0.5 mm - Surface roughness for top profile: VDI #24 - Surface roughness for profile: SPI A-3, polishing along the vertical axis of rotation Graduation Thesis Research and design cavities injection plastic mold of the laundry detergent closures for practical application Name General Tolerance Linear Angular Drawn Ng T Tam X ±0.2 X ±1° Reviewer Tran Tan Kiet X.X ±0.1 X.X ±0.5° Approver X.XX ±0.05 Sign Date 7/2/23 2001-Cavity insert am Materials: 2083 Scale: 4:5 Mass: 1.5Kg Sheet 12 of 21 Quantity: 08 HCMC University of Technology and Education Faculty of High Quality Training Hardness: 52±2HRC 18144001 - 18144048 Class: 18144CLA 0.16 Depth 0.25±0.1 164.59 8-0.02 2.54 0.38 -0.05 15-0.1 +0.2 15 124.39 0.41 3.05 -0.005 Ø25-0.015 2-R0.4 +0.2 2.2 R0.61 A Ø8 -0.05 0.26 Ø27-0.02 A R17 R8 R1.02 15.2 1.5-0.1 +0.02 C1 Ø5 186.59 169.59 17 B R0.4 3.5 Ø6 SinØ2 0.61 177.2 +0.2 2.2 Ø7.98 B(3:1) +0.02 1.34 SECTION A-A 3 1.5-0.1 C0.5 Ø21 130° 2.5 +0.2 Ø2 Ø27-0.02 1.5-0.1 R0.4 400 Grit Paper 0.1 SinØ2 C0.5 -0.1 Ø27-0.2 SinØ2 182.07 Technical requirements: - Chamfer remain edges: 0.5x0.5 mm - Thread profile: ØCr =21, ØDr =27, Pitch=9mm Double thread - The roughness surface profile remains : SPI B-2 Graduation Thesis Research and design cavities injection plastic mold of the laundry detergent closures for practical application Name General Tolerance Linear Angular Drawn Ng T Tam X ±0.2 X ±1° Reviewer Tran Tan Kiet X.X ±0.1 X.X ±0.5° Approver X.XX ±0.05 Sign Date 7/2/23 3001-Insert duong 01 Materials: 2083 Scale: 1:1 Mass: 0.7Kg Sheet 13 of 21 Quantity: 08 HCMC University of Technology and Education Faculty of High Quality Training Hardness: 52±2HRC 18144001 - 18144048 Class: 18144CLA +0.02 400 Grit Paper 135.04 131.04 125.11 0.1 C +0.2 3.2 R1.02 1.45 89 ° 3.04 1.21 2.5-0.1 10.25 21.2 0.16 A 0.381 A 20 Ø8 Air vent 0.01(±0.005) 11.5 22.49 -0.05 30.2 11.96 R17.5 27.5-0.1 +0.02 40 R0.5 R29.5 +0.05 15 0 8-0.02 +0.02 186.59 171.39 D(3:2) Ø2 +0.01 +0.02 ° 85 Ø25 +0.02 Ø27 +0.2 Ø44 -0.005 Ø50-0.02 Ø52-0.02 -0.005 0.2 C(4:1) D 22.2 Ø42.46-0.01 Ø42.06±0.02 40.36±0.02 SECTION A-A 139.46 Graduation Thesis Technical requirements: - Chamfer remain edges: 0.5x0.5 mm - The roughness surface profile remains : SPI B-2 Research and design cavities injection plastic mold of the laundry detergent closures for practical application Name General Tolerance Linear Angular Drawn Ng T Tam X ±0.2 X ±1° Reviewer Tran Tan Kiet X.X ±0.1 X.X ±0.5° Approver X.XX ±0.05 Sign Date 7/2/23 3002-Insert duong 02 Materials: 2083 Scale: 1:1 Mass: 1.47Kg Sheet 14 of 21 Quantity: 01 HCMC University of Technology and Education Faculty of High Quality Training Hardness: 52±2HRC 18144001 - 18144048 Class: 18144CLA 400 Grit Paper B +0.1 6+0.05 0.1 2R0.2 49.55-0.02 -0.005 Ø50.66±0.02 +0.1 1.28+0.05 0.16 A A 13±0.02 -0.02 1.95-0.05 C0.1 12.24 25° Ø46.45±0.02 -0.005 Ø43.87-0.02 +0.01 Ø42.46 +0.1 Ø44.6 ° 85 0.55 0.8 6.71 0.43 R2.4 R2 68.83 +0.02 81.04 +0.02 105 B(4:1) SECTION A-A Technical requirements: - Chamfer remain edges: 0.5x0.5 mm - The roughness surface profile remains : SPI B-2 Graduation Thesis Research and design cavities injection plastic mold of the laundry detergent closures for practical application Name General Tolerance Linear Angular Drawn Ng T Tam X ±0.2 X ±1° Reviewer Tran Tan Kiet X.X ±0.1 X.X ±0.5° Approver X.XX ±0.05 Sign Date 7/2/23 3003-Insert duong 03 Materials: 2083 Scale: 5:4 Mass: 0.3Kg Sheet 15 of 21 Quantity: 08 HCMC University of Technology and Education Faculty of High Quality Training Hardness: 52±2HRC 18144001 - 18144048 Class: 18144CLA +0.02 78 C0.5 0.16 42.75 400 Grit Paper +0.2 3.2 0.1 45-0.025 R2 R1 2.5-0.1 2-M5x0.8 A 62° 22 21.25 C0.5 A Ø61 Ø54.77-0.01 -0.005 24.37 Ø70-0.02 Ø72-0.02 -0.005 2-R0.4 45 80 ° R50 3.5 2.5 3.2 5.3 8-0.02 3.5 Holes Ø5.5 Through +0.02 38 42.75 36.65 +0.02 90.42 C(4:1) Air vent 0.01(±0.005) 2.5 10.87 7.36 Ø54.77-0.01 Ø53.95 Ø53.34 +0.01 Ø49.55 Øcr=53.28 +0.2 Ø50 R0.3 Ødr=54.17 R2 0.46 10° 10.5 0.43 Ø100 40° 12.42 75 ° 2.71 4.23 Air vent 0.01(±0.005) C 52.17 53 D D(4:1) SECTION A-A Technical requirements: - Chamfer remain edges: 0.5x0.5 mm - Thread profile: Single thread,1.25 turn Pitch=4.23mm - The roughness surface profile remains : SPI B-2 Graduation Thesis Research and design cavities injection plastic mold of the laundry detergent closures for practical application Name General Tolerance Linear Angular Drawn Ng T Tam X ±0.2 X ±1° Reviewer Tran Tan Kiet X.X ±0.1 X.X ±0.5° Approver X.XX ±0.05 Sign Date 7/2/23 3004-Insert duong 04 Materials: 2083 Scale: 8:10 Mass: 1.03Kg Sheet 16 of 21 Quantity: 08 HCMC University of Technology and Education Faculty of High Quality Training Hardness: 52±2HRC 18144001 - 18144048 Class: 18144CLA 0.16 A 400 Grit Paper 0.1 2.8 45° Air vent 10 0.02 Ø54.32 +0.01 Vent channel depth 0,5 80 ° Ø74 Ø10 C1 2H-M5x0.8 A SECTION A-A +0.02 15+0.01 Holes Ø5 -0.005 Ø88-0.02 Technical requirements: - Chamfer remain edges: 0.5x0.5 mm - The roughness surface profile remains : SPI B-2 Graduation Thesis Research and design cavities injection plastic mold of the laundry detergent closures for practical application Name General Tolerance Linear Angular Drawn Ng T Tam X ±0.2 X ±1° Reviewer Tran Tan Kiet X.X ±0.1 X.X ±0.5° Approver X.XX ±0.05 Sign Date 7/2/23 3005-Insert duong 05 Materials: 2083 Scale: 3:2 Mass: 0.37Kg Sheet 17 of 21 Quantity: 08 HCMC University of Technology and Education Faculty of High Quality Training Hardness: 52±2HRC 18144001 - 18144048 Class: 18144CLA 6-0.02 +0.05 R23.5 0.16 1.5-0.1 +0.2 Ø2.2 Ø0.25 Ø59-0.1 R0.5 C0.2 C0.5 Technical requirements: Graduation Thesis Research and design cavities injection plastic mold of the laundry detergent closures for practical application - Chamfer remain edges: 0.5x0.5 mm Name General Tolerance Linear Angular Drawn Ng T Tam X ±0.2 X ±1° Reviewer Tran Tan Kiet X.X ±0.1 X.X ±0.5° Approver X.XX ±0.05 Sign Date 7/2/23 5017-Statonnary insert duong Materials: P20 Hardness: 30±2HRC Scale: 3:1 Mass: 0.04Kg Sheet 18 of 21 Quantity: 16 HCMC University of Technology and Education Faculty of High Quality Training 18144048-18144CLA1 0.16 117±0.02 -0.005 Ø25-0.02 +0.02 20 A A R4 Ø18 14 165±0.1 Ø11 C0.5 SECTION A-A Graduation Thesis Research and design cavities injection plastic mold of the laundry detergent closures for practical application Name General Tolerance Linear Angular Drawn Ng T Tam X ±0.2 X ±1° Reviewer Tran Tan Kiet X.X ±0.1 X.X ±0.5° Approver X.XX ±0.05 Sign Date 7/2/23 5019-Support pins se Materials: SUJ2 Hardness: 58±2HRC Scale: 3:2 Mass: 0.48Kg Sheet 19 of 21 Quantity: 02 HCMC University of Technology and Education Faculty of High Quality Training 18144048-18144CLA1 0.16 8-0.02 C0.5 Ø59-0.1 -0.005 Ø51-0.02 A A 39.5-0.2 Ø37 +0.02 41 +0.02 28.5±0.02 R4 SECTION A-A Graduation Thesis Research and design cavities injection plastic mold of the laundry detergent closures for practical application Name General Tolerance Linear Angular Drawn Ng T Tam X ±0.2 X ±1° Reviewer Tran Tan Kiet X.X ±0.1 X.X ±0.5° Approver X.XX ±0.05 Sign Date 7/2/23 5020-Leader bushings se Materials: SUJ2 Hardness: 58±2HRC Scale: 3:2 Mass: 0.32Kg Sheet 20 of 21 Quantity: 02 HCMC University of Technology and Education Faculty of High Quality Training 18144048-18144CLA1 0.16 45.5±0.02 +0.05 Holes Ø8 A 25.5 A 13-0.02 -0.005 Ø67-0.02 Ø25 0 Ø37-0.02 +0.02 Holes Ø6 +0.2 59.5 SECTION A-A Graduation Thesis Research and design cavities injection plastic mold of the laundry detergent closures for practical application Name General Tolerance Linear Angular Drawn Ng T Tam X ±0.2 X ±1° Reviewer Tran Tan Kiet X.X ±0.1 X.X ±0.5° Approver X.XX ±0.05 Sign Date 7/2/23 5021-Leader bushings se Materials: SUJ2 Hardness: 58±2HRC Scale: 3:2 Mass: 0.47Kg Sheet 21 of 21 Quantity: 02 HCMC University of Technology and Education Faculty of High Quality Training 18144048-18144CLA1 S K L 0