How to control the quality of heat treatment of cold pier molds in actual production?
Release time:
2025/08/03
In actual production, the quality control of cold pier mold heat treatment needs to cover the entire process of raw material inspection, precise control of process parameters, dynamic monitoring of processes, equipment maintenance, and personnel operation specifications. Combined with the principle of "prevention first, process control, and result verification", it ensures that the mold performance (hardness, toughness, wear resistance) and dimensional accuracy meet stable standards. The specific measures are as follows:
1、 Raw materials: Quality control from the source
The heat treatment effect of cold pier molds is directly related to the composition, purity, and forging quality of raw materials, and must be strictly controlled before heat treatment:
Composition and organization inspection:
Require suppliers to provide material quality assurance certificates (including chemical composition and smelting process), with a focus on verifying the content of key elements such as carbon (C), chromium (Cr), molybdenum (Mo) (e.g. Cr12MoV needs to ensure C: 1.4-1.6%, Cr: 11-12%), in order to avoid insufficient hardness or cracking after heat treatment due to excessive composition;
Perform metallographic sampling on key molds (such as large concave molds) to confirm the absence of network carbides, band segregation, or shrinkage cavities (these defects can cause stress concentration and a sudden increase in the risk of cracking during quenching).
Forging quality verification:
Cold pier die steel (such as Cr12 series) needs to undergo forging to refine the grain size. If the forging is insufficient (such as insufficient upsetting), it will lead to loose structure and uneven performance after heat treatment. It is necessary to check the hardness (should be ≤ HB250) and streamline distribution after forging (streamline should follow the contour of the mold to avoid cross flow).
Previous:
:Next
Next
More Events
How to Choose the Right Screw Mold for Your Manufacturing Needs
How to Choose the Right Screw Mold for Your Manufacturing Needs Choosing the right screw mold is a critical decision for any manufacturer looking to enhance productivity and ensure high-quality outputs. With various types of screw molds available in the market, understanding their features, applications, and specifications is essential. This detailed guide will navigate you through the factors you
2026-07-20
Unlocking the Potential of Carbide Molds in Precision Manufacturing
Carbide molds are an essential component in the manufacturing and machining industry, particularly in the production of high-precision parts. Made from a composite material primarily consisting of tungsten carbide and a binding agent, these molds offer unparalleled durability and performance compared to traditional steel molds. This article discusses the advantages, applications, and consideration
2026-07-16
Why Your Workshop Needs High-Quality Hex Socket Head Screw Molds
Why Your Workshop Needs High-Quality Hex Socket Head Screw Molds Introduction to Hex Socket Head Screws and Molds In the realm of manufacturing, precision and reliability are paramount. **Hex socket head screws** are widely appreciated for their design and functionality, making them a staple in various applications, from automotive to electronics. To produce these screws efficiently and effectivel
2026-07-12
