Supercharge Your Innovation With Domain-Expert AI Agents!

Hardening and tempering method of novel anti-corrosion glass die steel large-section forging material

A technology of corrosion-resistant glass and mold steel, which is applied in the quenching and tempering of pre-hardened corrosion-resistant glass mold steel large-section forgings, and in the field of glass mold steel for the production of high-grade glass products, which can solve problems such as uneven structure

Inactive Publication Date: 2016-04-13
FUSHUN SPECIAL STEEL SHARES
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention discloses a novel quenching and tempering method for large-section forgings of corrosion-resistant glass mold steel.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Hardening and tempering method of novel anti-corrosion glass die steel large-section forging material
  • Hardening and tempering method of novel anti-corrosion glass die steel large-section forging material
  • Hardening and tempering method of novel anti-corrosion glass die steel large-section forging material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The size is Φ100mm finished forging material;

[0038] 1. Smelting: use electric furnace + LF + VD + electroslag remelting steel, the ingot type is Φ360 electroslag ingot, furnace number: 15229080076;

[0039] 2. Forging: 2000t fast forging + 1000t precision forging are used to form a material, the size of the finished material is Φ100mm, and the finished material is annealed after forging;

[0040] 3. Tempering: such as figure 2 As shown, the steel is heated in a trolley-type electric furnace, the heating rate is not greater than 100°C / h, and heated to 1020°C for austenitization and heat preservation for 4 hours; - After quenching during oil control (immersion in water for 35s→air cooling for 200s→oil immersion for 15min), the steel is air-cooled to between 170°C and 190°C and entered into a trolley-type electric heating furnace for tempering. The tempering temperature is 640°C and the time is 15h;

[0041] 4. Test results

[0042] ①Hardness (HRC): 32.7, 33.8, 33.1...

Embodiment 2

[0046] The size is Φ170mm finished forging material;

[0047] 1. Smelting: use electric furnace + LF + VD + electroslag remelting steel, the ingot type is Φ480 electroslag ingot, furnace number: 15229080089;

[0048] 2. Forging: 3150t fast forging + 1800t precision forging are combined to form a material, the size of the finished material is Φ170mm, and the finished material is annealed after forging;

[0049] 3. Tempering: such as image 3 As shown, the steel is heated in a trolley-type electric furnace, the heating rate is not greater than 100°C / h, and heated to 1020°C for austenitization and heat preservation for 4 hours; - After quenching during oil control (immersion in water for 51s→air cooling for 250s→oil immersion for 22min), the steel is air-cooled to between 170°C and 190°C and entered into a trolley-type electric heating furnace for tempering. The tempering temperature is 640°C and the time is 20h;

[0050] 4. Test results

[0051] ①Hardness (HRC): 33.5, 34.2, 3...

Embodiment 3

[0055] The size is Φ270mm finished forging material;

[0056] 1. Smelting: use electric furnace + LF + VD + electroslag remelting steel, the ingot type is Φ610 electroslag ingot, furnace number: 15229520093;

[0057] 2. Forging: 3150t fast forging + 1800t precision forging are combined to form a material, the size of the finished material is Φ270mm, and the finished material is annealed after forging;

[0058] 3. Tempering: such as Figure 4As shown, the steel is heated in a trolley-type electric furnace, the heating rate is not greater than 100°C / h, heated to 1020°C for austenitization and heat preservation for 4.5 hours; Quenching during air-oil control (immersion in water for 81s→air cooling for 350s→oil immersion for 39min) After treatment, the steel is air-cooled to between 170°C and 190°C and entered into a trolley-type electric heating furnace for tempering. The tempering temperature is 640°C and the time is 25h;

[0059] 4. Test results

[0060] ①Hardness (HRC): 33....

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Yield strengthaaaaaaaaaa
Tensile strengthaaaaaaaaaa
Yield strengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a hardening and tempering method of a novel anti-corrosion glass die steel large-section forging material. The hardening and tempering method aims at solving the technical problem that a pre-hardening type anti-corrosion glass die steel large-size forging material is heterogeneous in structure after being pre-hardened. According to the following technical scheme, the anti-corrosion glass die steel large-section forging material steel with the diameter phi ranging from 100 mm to 450 mm is subjected to austenite homogenization heating according to the heating homogenization time calculated according to the size of the steel; after being austenitized in a trolley type electric furnace, the steel is conveyed into a quenching tank quickly, and according to the product specification, discontinuous water quenching and air and oil cooling are conducted; and after the steel is subjected to martensite transformation, tempering treatment is conducted on the steel entering the trolley type electric furnace. The hardening and tempering method has the beneficial effects that the cooling speed of workpieces is controlled effectively, and it is guaranteed that the cracking phenomenon does not exit in the workpiece quenching process; when the steel is quenched, large-section forging material ferrite is inhibited from being separated out effectively, and it is guaranteed that the quenching structure is homogenous; and after the rolled steel is tempered, the hardness is uniform, and the finished die has excellent use performance.

Description

technical field [0001] The invention belongs to the technical field of heat treatment of metal materials, and in particular relates to a quenching and tempering method for large-section forgings of pre-hardened corrosion-resistant glass mold steel, which is used for manufacturing glass mold steel for producing high-grade glass products. Background technique [0002] Glass mold is an important tool for forming glass products. With the development of my country's light industry and the continuous improvement of glass product forming machines, higher requirements are put forward for the heat resistance, thermal conductivity and service life of mold materials. Therefore, glass mold materials have developed from cast iron, Ni-Cr cast iron, etc. to special steel, and a new type of corrosion-resistant glass mold steel has been developed. [0003] Glass molds are subjected to all-directional pressure during the glass forming process, and high mechanical properties and hardness are i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C21D1/25
CPCC21D1/25
Inventor 汝亚彬康爱军孙大利刘宝石刘玉芬穆立峰燕云岳彩超孙秀华冯淑玲秋立鹏谭凯
Owner FUSHUN SPECIAL STEEL SHARES
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com