Restoration of wheel pair crest surfacing

The language of work is Russian;
Drawings are made in the compass program;
The number of drawings - 10pcs;
The number of pages of the explanatory note - 118
Table of contents
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Abstract 1
Introduction 3
1 CJSC “MRK” brief description 5
1.1 the List of products and 8
technical characteristic of CJSC “MRK” 8
1.2 Characteristics of the main types of forgings: 9
1.2.1 Press forgings 9
1.2.3 Hammer forgings 10
1.2.4 Applicable materials: 11
2 Machining 12
3 Continuity of orders for 17
repair work 17
4 General characteristics of wheelsets 19
4.1 Classification of wheelsets 21
4.1.1 Stages of improving their designs 21
4.1.2 Operating conditions for wheelsets 26
5 Wheel pair malfunctions 28
5.1 Causes and methods for detecting malfunctions of wheelsets 30
5.2 Wear and vertical undercutting of wheel flanges 32
5.3 Types of survey and repair 37
6 Flaw detector test 40
6.1 Stand for magnetic particle inspection of wheelsets 43
7 The concept of surfacing 45
7.1 Welding methods 55
7.3 Restoration and hardening of wheelsets 56
7.3.1. Increased durability of wheel sets 56
7.3.2 Restoring the wheel profile 57
7.3.3 Dynamic balancing of wheel sets 59
8 Repair surfacing of wheel flanges 60
cored wire. 60
8.1 Fused wheel. 61
8.2 Repair surfacing of wheelset flanges 62
using surfacing tape 62
8.3 Marks of wires for surfacing 68
9 Technologically, the process of surfacing the crests of wheelsets 70
9.1 Description of the process for operations 71
9.2 Preparation of parts for surfacing 73
9.3 Heating parts before surfacing 74
9.4 Surfacing modes 75
9.4 After-heating 76
9.5 Heat treatment 77
10 Description and technical data 78
surfacing machine UNK-1 78
11 Acceptance and branding of wheelsets after repair 80
12 Description of the KT-066 installation for preliminary 81
wheelset heating 81
13 Safety and environmental friendliness 82
13.1 Safety at work 85
13.2 Environmental protection 88
13.3 Emergency Prevention and Response 92
14 Calculation of technical and economic indicators and 96
feasibility of decisions adopted in the draft 96
14.1 Introduction 96
14.2 Legal status of RTOs 99
closed joint-stock company 99
14.3. History of the development of CJSC “MRK” 100
14.4 Economic justification of the project 103
14.5 calculation of the production program 104
14.6 the calculation of the need for personnel and wages 106
14.7 calculation of the cost of production 112
14.8 Calculation and rationing of labor costs for the implementation of the process, consumption rates of materials necessary for the implementation of the process 113
14.9 Calculation of technical and economic efficiency 116
15 Conclusion 117
16 References 118