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Steel for glass lining and manufacturing method of steel

A manufacturing method and glass-lined technology, applied in the field of metal materials and their manufacturing, can solve problems such as poor low-temperature toughness and difficult processing

Inactive Publication Date: 2021-09-10
BAOSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] One of the objects of the present invention is to provide a steel for glass lining, which aims to solve the problems of difficult processing and poor low temperature toughness of the existing steel for glass lining

Method used

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  • Steel for glass lining and manufacturing method of steel
  • Steel for glass lining and manufacturing method of steel
  • Steel for glass lining and manufacturing method of steel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-6

[0075] Glass-lined steel of the present invention adopts following steps to make:

[0076] (1) Smelting, refining, and continuous casting to obtain slabs.

[0077] (2) Heating: The heating temperature is 1050-1250°C.

[0078] (3) Hot rolling: Control the temperature at the end of hot rolling to be 800-920°C.

[0079] (4) Cooling: use air cooling or water cooling, when using air cooling, cool to room temperature; when using water cooling, control the final cooling temperature to 650~750°C, and the cooling rate is not more than 50°C / s.

[0080] (5) Heat treatment: The heat treatment temperature is 880-980°C.

[0081] Table 1 lists the mass percentage distribution ratio of each chemical element in the glass-lined steel of Examples 1-6.

[0082] Table 1. (wt%, the balance is Fe and other unavoidable impurities)

[0083]

[0084] Table 2 lists the specific process parameters of each step of the manufacturing method of Examples 1-6.

[0085] Table 2.

[0086]

[0087] ...

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PUM

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Abstract

The invention discloses steel for glass lining. The steel comprises, by mass, 0.015%-0.060% of C; 0.01%-0.50% of Si, 0.20%-1.5% of Mn, 0.005%-0.10% of P, 0.010%-0.070% of Al, 0.10%-0.30% of Ti, the balance Fe and other inevitable impurities. The microstructure of the steel for the glass lining is ferrite, and the microstructure of the steel for the glass lining is ferrite, or ferrite+cementite. In addition, the invention also discloses a manufacturing method of the steel for the glass lining. The manufacturing method comprises the following steps: (1) carrying out smelting, refining and continuous casting to obtain a plate blank; (2) heating; (3) carrying out hot rolling; (4) cooling; and (5) carrying out heat treatment. In the step (2), the heating temperature is 1050-1250 DEG C; and in the step (3), the finishing temperature of hot rolling is controlled to be 800-920 DEG C. the steel for the glass lining provided by the method has has excellent machinability and low-temperature toughness, and also has excellent enameling property.

Description

technical field [0001] The invention relates to a metal material and a manufacturing method thereof, in particular to a steel material and a manufacturing method thereof. Background technique [0002] The glass lining process is to coat the glassy enamel containing high quartz components on the surface of the metal substrate, and then sinter at high temperature to make the enamel firmly adhere to the surface of the substrate to form a composite material. In the prior art, glass-lined equipment made of steel plate as the metal base has a wide range of applications, such as glass-lined reactors, glass-lined storage tanks, etc., due to the characteristics of both the stability of glass and the high strength of metal , has good wear resistance, has extremely high corrosion resistance to various acids and organic solvents, and also has good corrosion resistance to alkaline solutions. [0003] In the production process of existing glass-lined equipment, after forming, welding and...

Claims

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Application Information

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IPC IPC(8): C22C38/50C22C38/48C22C38/46C22C38/42C22C38/32C22C38/28C22C38/26C22C38/22C22C38/20C22C38/16C22C38/14C22C38/12C22C38/06C22C38/04C22C38/02C21D8/02
CPCC22C38/50C22C38/48C22C38/46C22C38/42C22C38/32C22C38/28C22C38/26C22C38/22C22C38/20C22C38/16C22C38/14C22C38/12C22C38/06C22C38/04C22C38/02C22C38/002C22C38/001C21D8/0205C21D2211/005C21D2211/003C22C38/08C21D9/46C21D1/02C21D8/0226C21D8/0263C21D1/60C21D1/56C21D1/28C22C38/24C21D8/0278C21D6/005C21D6/02C21D1/26C22C38/44C21D8/0215C21D8/0247C21D6/001C21D6/002C21D6/004C21D6/008C21D8/0236C21D9/0081C22C33/04
Inventor 孙全社姚士杰鲁岩王俊凯秦勤
Owner BAOSHAN IRON & STEEL CO LTD
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