Thermal treatment repairing method for roll-shape mold
A repair method and mold heating technology, applied in heat treatment furnaces, heat treatment equipment, manufacturing tools, etc., can solve problems such as scrapping and reducing the service life of roll molds, and achieve the goal of ensuring repeated use, ensuring coaxiality, and improving service life Effect
Active Publication Date: 2020-04-21
ZHEJIANG JINGU CO LTD
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Problems solved by technology
[0003] The main purpose of the present invention is to provide a heat treatment repair method for roller molds to solve the problem that during the long-term use of the roller molds in the prior art, the hole wall wear of the shaft installation hole reaches a preset value and is scrapped, reducing the roller mold. The problem of the service life of the mold
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[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0019] In order to solve the problem that during the long-term use of the roller mold in the prior art, the wear amount of the hole wall of the shaft installation hole reaches the preset value and is scrapped, which reduces the service life of the roller mold. The present invention provi...
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Abstract
The invention provides a thermal treatment repairing method for a roll-shape mold. The method comprises the steps of S1, quenching the roll-shape mold at the room temperature for the first time; S2, annealing the roll-shape mold after being quenched the first time; S3, quenching the annealed roll-shape mold for the second time; S4, tempering the roll-shape mold after being quenched for the secondtime for the first time; S5, quickly cooling the roll-shape mold to the critical temperature from the first tempering temperature; S6, quenching the roll-shape mold at the critical temperature for thethird time; S7, tempering the roll-shape mold after being quenched for the third time for the second time; S8, cooling the roll-shape mold to the preset temperature from the second tempering temperature; S9, cooling the roll-shape mold at the preset temperature to the room temperature. The thermal treatment repairing method solves the problems that in the prior art, after the roll-shape mold is used for a long time, the wear amount of the hole wall of a rotation shaft mounting hole reaches the preset value, the rotation shaft mounting hole is scrapped, and the service life of the roll-shape mold is shortened.
Description
technical field [0001] The invention relates to the technical field of mold repair, in particular to a heat treatment repair method for a roll mold. Background technique [0002] In the prior art, the roller mold is used to roll the base material of the roller mold to form the rim. Since the roller mold is connected to the shaft through the shaft installation hole on it, during long-term use, the wall surface of the shaft installation hole and the shaft The friction between the inner wall surfaces leads to an increase in the wear of the hole wall of the shaft installation hole, which leads to an increase in the gap between the shaft installation hole and the shaft of the roll mold, which reduces the coaxiality of the roll mold and the shaft, resulting in roll shape The rim rolled out of the mold is unqualified, resulting in waste of materials. In order to ensure that the roll mold can process a qualified rim, usually when the wear of the hole wall of the shaft mounting hole ...
Claims
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IPC IPC(8): C21D1/18C21D1/26C21D6/04C21D9/00
CPCC21D1/18C21D1/26C21D6/04C21D9/0068
Inventor 吕潇楠汪冬冬王富城
Owner ZHEJIANG JINGU CO LTD