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High alloy steel heat-resistant martensitic stainless steel heat treatment device

A technology of martensitic stainless steel and heat treatment equipment, applied in heat treatment furnaces, heat treatment equipment, furnace types, etc., can solve the problems of lack of tempering equipment, etc., and achieve the effects of increasing toughness, eliminating stress, and stabilizing and refining grains

Pending Publication Date: 2021-09-17
HUSN CASTING ANHUI YINGLIU GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] ZG1Cr10MoWVNbN heat-resistant martensitic stainless steel has good overall performance, but it has the problem of high-temperature durable tensile properties in supercritical casting applications. In the prior art, ZG1Cr10MoWVNbN heat-resistant martensitic stainless steel usually only uses one tempering, and lacks Supporting special tempering equipment, in order to prolong the service life of castings and achieve mass production, there is an urgent need for a high-alloy steel heat-resistant martensitic stainless steel heat treatment device to meet the above needs

Method used

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  • High alloy steel heat-resistant martensitic stainless steel heat treatment device

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Embodiment Construction

[0025] 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, not all, embodiments of the present invention.

[0026] refer to Figure 1-7 , a high-alloy steel heat-resistant martensitic stainless steel heat treatment device, including a box-type gas furnace 16 and a tray 1, the upper end of the tray 1 is provided with a plurality of lifting lugs 2, characterized in that:

[0027] The tray 1 is provided with slots 11 whose positions and numbers correspond to those of the telescopic tubes 10. The setting of the slots 11 plays two roles. On the one hand, the sand layer at the bottom can pass through the slots 11 and enter the tray 1. On the other hand, the telescopic tube 10 can protrude from the slot 11.

[0028] The lower end of tray 1 is connected with chassis 4 by bolt 3, ...

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Abstract

The invention discloses a high alloy steel heat-resistant martensitic stainless steel heat treatment device, and relates to the technical field of stainless steel heat treatment. The high alloy steel heat-resistant martensitic stainless steel heat treatment device comprises a box-type gas furnace and a tray, the upper end of the tray is provided with a plurality of lifting lugs, the tray is provided with at least one slot, and the lower end of the tray is connected with a chassis through bolts; a partition plate is arranged in the chassis, and a sand layer is arranged at the upper end of the partition plate; and at least one supporting leg is arranged at the bottom end of the partition plate, penetrates through the chassis in a clearance manner and extends to the outer side of the chassis. The extension type cooling design in the tray is adopted, the device is adopted, uniform cooling is matched with two times of tempering, so that the metallographic structure of martensitic stainless steel is compact, retained austenite is eliminated, stress is further eliminated, the strength of the martensitic stainless steel is not changed, the toughness is improved, meanwhile, the effects of stabilizing and refining grains and homogenizing the structure can be completely achieved, and the obtained mechanical property result and the high-temperature lasting tensile property completely meet the standard requirements.

Description

technical field [0001] The invention relates to the technical field of stainless steel heat treatment, in particular to a high-alloy steel heat-resistant martensitic stainless steel heat treatment device. Background technique [0002] ZG1Cr10MoWVNbN heat-resistant martensitic stainless steel has good overall performance, but it has the problem of high-temperature durable tensile properties in supercritical casting applications. In the prior art, ZG1Cr10MoWVNbN heat-resistant martensitic stainless steel usually only uses one tempering, and lacks Supporting special tempering equipment, in order to prolong the service life of castings and achieve mass production, there is an urgent need for a high-alloy steel heat-resistant martensitic stainless steel heat treatment device to meet the above needs. Contents of the invention [0003] The object of the present invention is to solve the above problems, and propose a heat treatment device for high-alloy steel heat-resistant marten...

Claims

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Application Information

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IPC IPC(8): C21D1/18C21D1/28C21D6/00C21D9/00C22C38/02C22C38/04C22C38/06C22C38/44C22C38/46C22C38/48
CPCC21D1/18C21D1/28C21D6/004C21D6/005C21D6/008C22C38/02C22C38/04C22C38/44C22C38/46C22C38/48C22C38/06C21D9/00
Inventor 叶登权杜应流矫桂霞阮鹏何桂霞曹家林杨亮
Owner HUSN CASTING ANHUI YINGLIU GROUP
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