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A method and device for manufacturing a corrosion-resistant hot stamping part

A manufacturing method and corrosion-resistant technology, applied in the field of hot stamping, can solve problems such as blank deformation, improve corrosion resistance, save processing time and cost, and inhibit LMIE.

Active Publication Date: 2022-03-25
SUZHOU PRESSLER ADVANCED FORMING TECHNOLOGIES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the formation of surface nano-layers by means of high-energy shot peening will lead to serious deformation of the billet

Method used

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  • A method and device for manufacturing a corrosion-resistant hot stamping part

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Embodiment Construction

[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0036] The manufacturing method of the corrosion-resistant hot stamping part described in this embodiment comprises the following steps:

[0037] First, blank the bare steel sheet (also called uncoated sheet and uncoated sheet) according to the size and shape requirements of the part to obtain a blank. Specifically, in this step, the blanking method may be cold stamping blanking or laser cutting blanking, etc., so as to adapt to steel...

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Abstract

The invention discloses a method and a device for manufacturing a corrosion-resistant hot stamping part. The manufacturing method of the corrosion-resistant hot stamping part comprises the following steps: blanking the bare steel plate into a blank of a desired shape; performing surface treatment on the blank to form a paint layer on the surface of the blank; putting the blank with the paint layer into the anaerobic heating Heating in the furnace for 1-10 minutes, so that the temperature of the billet reaches between 880-950 °C; put the heated billet into the mold for molding, so as to form a part with corrosion-resistant in-situ coating. The hot stamping parts prepared by the method have good corrosion resistance, and the heating time can be significantly shortened to improve production efficiency.

Description

technical field [0001] The invention relates to the technical field of hot stamping, in particular to a manufacturing method and device of a corrosion-resistant hot stamping part. Background technique [0002] The traditional thermoformed parts made of bare boards (also known as uncoated boards, uncoated boards) are prone to oxide skin and have no anti-corrosion ability during use. In order to improve the oxidation resistance and corrosion resistance of the thermoformed parts of the bare board, technologies such as aluminum-silicon-coated boards and zinc-based coatings have been developed on the market. [0003] The most widely used aluminum-silicon coated board, however, for the aluminum-silicon coated board, the aluminum-silicon coating after hot pressing does not have sacrificial anode protection (in layman's terms, the corrosion of the anode metal is used to protect the cathode metal to slow down corrosion) performance. . Although the zinc-based coating has good incisi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D22/02
CPCB21D22/022
Inventor 安健陈汉杰王波李浩
Owner SUZHOU PRESSLER ADVANCED FORMING TECHNOLOGIES CO LTD