Mold making and inspection
Release time:
2024-03-29 15:04
Source:
Mold is the basic process equipment for mechanical industrial production, is the production of industrial products in the indispensable tools, mold steel made of the performance of the mold needs to be monitored through a strict production process, the production of raw materials for the mold must also undergo a rigorous check to prevent the mold due to material problems form early failure of heat treatment cracking and other defects.
Mold raw materials control from the following aspects:
1, macro-inspection
Chemical composition to ensure that the performance of steel is decisive, but the composition of qualified, can not be comprehensive to illustrate the performance of steel, due to the internal organization of steel and the composition of the inhomogeneity of macro-inspection to a large extent to supplement the shortcomings in this regard. Macro inspection can observe the crystallization of steel, the destruction of steel continuity and non-uniformity of certain components. Macro common 8 kinds of defects: segregation, loose, inclusions, shrinkage, bubbles, white spots, cracks, folding.
2, the evaluation of annealing organization
The purpose of annealing, reduce the hardness of steel, easy to machine, but also for the subsequent heat treatment for the organization.
3, carbide inhomogeneity
Cr12-type leucite steel, the organization contains a large number of eutectic carbides, carbide inhomogeneity on the use of performance has a very important impact, so the distribution of its carbide must have strict control.
In short, due to the mold production plant and workshop production object is more cumbersome, and more or less is a single piece, small batch, thus for the mold production quota development and management of certain difficulties, coupled with the production of various factories and workshops production methods, equipment, technical qualities are not quite the same, so in the development of the quota, we must be in accordance with the actual situation of the plant and workshop, to find the appropriate method of development of both advanced and reasonable Working hours quota, in order to improve the labor productivity of purpose
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1. the design of the mold product feasibility analysis, computer chassis as an example, first of all the components of the product drawings using the design software for the group analysis, that is, we work in the so-called set of drawings to ensure that the correctness of the product drawings before the mold design, on the other hand, you can be familiar with the components of the
Mold normal failure, the number of qualified products produced, called the mold normal life, referred to as mold life, the number of qualified products produced before the first repair of the mold, called the first life; mold a repair to the next repair the number of qualified products produced before the next repair,
Mold is the basic process equipment for mechanical industrial production, is the production of industrial products in the indispensable tools, mold steel made of the performance of the mold needs to be monitored through a strict production process, the production of raw materials for the mold must also undergo a rigorous check to prevent the mold due to material problems
(1) Purpose: so that the equipment can maintain the best performance status and extend the service life, to ensure the normal production. (2) Scope of application: applicable to the repair and maintenance of molds.
Injection and guide sleeve units
There are two types of mold guiding methods and accessories for guide injection and guide sleeve unit types: (A). External guide type (mold base type or called the main guide), (B). Inner guide type (or auxiliary guide). In order to meet the requirements of precision molds, there is a high demand for the use of both the outer guide and inner guide types.
High life mold form and mechanism
Mold in service, contact with the forming blank, resulting in relative motion. Because of the relative motion of the surface, the contact surface gradually lose material phenomenon called wear. Wear loss can be divided into the following categories: