1. Reasonable selection of materials.
For precision messy molds, micro-deformed
mold steel of good quality should be selected. For mold steel with serious
carbide segregation, reasonable casting and quenching and tempering heat
treatment should be carried out. For larger and unsuitable mold steel, solid
solution double refinement heat treatment can be carried out. Reasonably select
the heating temperature and control the heating speed. For precision and messy
molds, slow heating, preheating and other balanced heating methods can be used
to reduce mold heat treatment deformation.
2. Correct heat treatment process operation
and reasonable tempering heat treatment process are also useful methods to
reduce the deformation of precision messy molds.
The reason for the deformation of the
precision messy mold is often messy, but only need to grasp the deformation
rules, analyze the cause of its occurrence, and choose an abnormal method to
avoid the deformation of the mold, which can be reduced and controlled.
3. Pre-heat treatment of precision messy
molds should be carried out to eliminate the remaining stress during machining.
For precision messy molds, when conditions
permit, try to use vacuum heating and quenching and cryogenic treatment after
quenching. On the premise of ensuring the hardness of the mold, try to use
pre-cooling, staged cooling quenching, or warm quenching processes.
4. Mold planning and description should be
reasonable, the thickness should not be too wide, the shape should be
symmetrical, the deformation rules should be mastered for the larger deformed
mold, and the processing allowance should be reserved. The large, precise, and
a messy mold, combine planning can be used.
For some precision and messy molds,
pre-heat treatment, aging heat treatment, and tempering and nitriding heat
treatment can be used to control the accuracy of the mold. When repairing mold
blisters, pores, wear, and other defects, use cold welders and other equipment
with low heat impact to avoid deformation during the repair process.
Threeway Steel is known as a professional supplier engaged in manufacturing and distributing a wide range of steel pipe, and our headquarter located the central part of China – Hunan and six associated factories throughout China.
Threeway Steel is known as a professional supplier engaged in designing, manufacturing and distribution of a wide range of steel products with the headquarter located the central part of China – Hunan and six associated factories throughout China.
Threeway Steel is known as a professional supplier engaged in designing, manufacturing and distribution of a wide range of steel products with the headquarter located the central part of China – Hunan and six associated factories throughout China.
Threeway Steel is known as a professional supplier engaged in designing, manufacturing and distribution of a wide range of steel products with the headquarter located the central part of China – Hunan and six associated factories throughout China.
Threeway Steel is known as a professional supplier engaged in designing, manufacturing and distribution of a wide range of steel products with the headquarter located the central part of China – Hunan and six associated factories throughout China.
