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Steel blank heating method and device

A billet heating and billet technology, applied in heat treatment furnaces, heat treatment equipment, heat treatment process control, etc., can solve problems such as failure to achieve success, weak spraying performance of metal plates or components, and achieve improved optical appearance, simple implementation, and easy implementation. Effect

Active Publication Date: 2020-11-24
奥钢联汽车零部件卡特尔斯维尔有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] It has been recognized that simply drying the air does not achieve the desired success
[0018] Practice has shown that, nevertheless, metal sheets or components are produced, but these are poorly painted

Method used

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  • Steel blank heating method and device
  • Steel blank heating method and device
  • Steel blank heating method and device

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Embodiment Construction

[0049] 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 part of the embodiments of the present invention, not all of them. 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.

[0050] It should be noted that in the embodiments of the present invention, if the directional indication (such as up, down, left, right, front, back...) is only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0051] In the present invention, unless otherwise specified and limited, the terms ...

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Abstract

Disclosed are a method and a device for heating a sheet metal blank or a formed sheet metal component above the austenitization temperature for the purpose of quench hardening, wherein the dew point of the furnace atmosphere is set to -15DEG C to 15 DEG C, preferably to -10 DEG C to 10 DEG C, in particular for the formation of a loosely adhering oxide skin, for controlling an oxide skin on the sheet metal or component coated with a metallic corrosion protection layer or an uncoated sheet metal or component.

Description

technical field [0001] The invention relates to a method for heating a steel billet, which is formed and hardened by hot forming or stamping hardening (or quench hardening) process. Background technique [0002] It is well known that structural components of car bodies are made of hardened steel components in order to make them particularly stable. [0003] There are two conventional methods of producing these quenched steel components: one is to heat a flat blank of steel plate, austenitize, then hot form and quench; the other is to cold form, then heat, then quench harden, and It is saved in the tool corresponding to its profile. [0004] In both cases, the heating for hardening purposes is usually carried out in a heating furnace. Regardless of the heating method used, due to the extremely high temperature in the furnace (sometimes exceeding 900 ° C), the atmosphere in the furnace will affect the quality of the steel to be heated. surface. [0005] In particular, when ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D9/70C21D11/00C21D1/76
CPCC21D9/70C21D11/00C21D1/76C21D9/46C21D1/18
Inventor M·普费斯托夫W·卫梅斯特
Owner 奥钢联汽车零部件卡特尔斯维尔有限公司