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The technology of assembling and welding the frame jack
Refunds: 0
Uploaded: 26.09.2016
Content: 011_domkrat zd vagonov.zip 1836,89 kB
Product description
Thesis: The technology for assembling and welding the frame jack for lifting railway carriages.
Sheets graphic part - 9 pieces (AutoCad);
Explanatory Notes - 78 p.
ANNOTATION
The thesis project developed technology of assembly and welding of the frame jack for lifting railway carriages.
In order to optimize the production process use the tooling proposed, which reduces assembly time. For this purpose designed complex assembly and welding jigs for assembling and welding the frame nodes.
Implemented a new way of welding: arc welding with coated electrodes replaced by mechanized CO2.
For the developed technology and assembly welding frame jack given economic justification for its implementation, namely the calculated cost of production of the frame, and the economic effect.
In the occupational safety measures have been developed preventive impact of harmful factors on workers´ health as well as environmental protection measures. Graduation project ideas explanatory note 78 pages, graphical part 9 A1-size sheets.
CONTENT
SUMMARY 3
INTRODUCTION 8
1 STRUCTURAL ANALYSIS CHAPTER 7
1.1 PRODUCT DESCRIPTION 8
1.2 TECHNICAL REQUIREMENTS FOR WELD RACK 10
1.3 CHARACTERISTICS OF THE METAL BASE 12
Chemical properties 12
Mechanical properties 13
Weldability 1.4 14
pores 14
Hot crack 14
Embrittlement welds 15
Ensuring uniform strength of the welded joint with the base metal 15
Heat treatment of the welded joints 16
1.5 SELECTING THE METHOD OF WELDING 18
1.6 Choice of welding consumables 20
Selection of gas 20
Selection of the welding wire 20
1.7 SELECTION welded joints SIZES AND TRAINING CAEM 22
1.8 Calculation Parameters mode, CO2 arc welding 24
parameters of arc welding modes: 24
1.9 SELECTION OF WELDING EQUIPMENT 28
1.10 Process Flow Diagram 31
1.11 Welding accessories 32
1.12 CALCULATION TOOL ELEMENTS 36
Calculation of screw clamps: 36
Calculation of stops: 38
Calculation pnevmoprizhimov 39
1.13 QUALITY CONTROL 40
Basic control settings: 43
2 ECONOMIC PART 44
2.1 TECHNOLOGICAL PROCESS 46
2.2 DETERMINATION PROCESS COST PRODUCTS 47
2.3 COSTS OF BASIC MATERIALS: 47
2.4 The costs of welding consumables 49
2.5 Energy costs 51
The cost of workers´ wages 52
Depreciation on equipment 53
Costs for repairs and maintenance of equipment 54
Costs associated with the amortization of retention and building area occupied by the equipment 55
Determining the cost-effectiveness of design solutions 58
3 HEALTH AND SAFETY 60
3.1 MEANS AND MEASURES TO IMPROVE THE WORKING CONDITIONS 61
Technological measures 61
Design solutions 61
3.2 REQUIREMENTS FOR PREMISES 69 shops
3.3 PERSONAL PROTECTION 70
Radiation Protection 70
3.4 Normalization ENVIRONMENTAL SITUATION 70
3.5 Calculation of local exhaust 71
Calculation of local exhaust 71
The calculation of the local fixed hood 72
4 Conclusions 73
5 REFERENCES 74
6 Annex 75
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