Unlock instant, AI-driven research and patent intelligence for your innovation.

Plastic die steel with high toughness, high polishing property and corrosion resistance and preparation method thereof

A plastic mold and polishing technology, which is applied to the improvement of process efficiency, furnace, electric furnace, etc., can solve the problems of long production cycle and high cost, and achieve the effects of good spherical structure, high hardenability and improved removal ability

Active Publication Date: 2022-05-27
江苏宏晟模具钢材料科技有限公司
View PDF19 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, imported mold steel materials from abroad have disadvantages such as high cost and long production cycle. In order to meet the needs of industry development and customer use, it is urgent to design and produce a new type of plastic mold steel that can gradually replace imported materials under customer conditions. Maximize the benefits of customers

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
  • Plastic die steel with high toughness, high polishing property and corrosion resistance and preparation method thereof
  • Plastic die steel with high toughness, high polishing property and corrosion resistance and preparation method thereof
  • Plastic die steel with high toughness, high polishing property and corrosion resistance and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] A hot work die steel basically consists of the elements in Table 1 according to the mass fraction:

[0048] Table 1

[0049]

[0050] Note: The rest are Fe, and H≤1.5ppm, O≤13ppm, N≤140ppm

[0051] A method for preparing plastic mold steel with high toughness, high polishability and corrosion resistance, the steps are as follows:

[0052] S1, electric furnace smelting:

[0053] According to the chemical composition content of the smelted steel, the batching of scrap steel and alloy materials is prepared in advance, and the scrap steel is smelted in an electric furnace. Lime and fluorite are added to form basic slag, the basicity range of the basic slag is 2.1, and the molten steel melted in the electric furnace is subjected to dephosphorization and desulfurization treatment; when the molten steel temperature is 1630 ° C, aluminum wire is added for deoxidation, and then tapped Wherein, the alloy material is ferrochromium alloy material, ferrovanadium alloy material...

Embodiment 2

[0073] A hot work die steel, according to the mass fraction, basically consists of the elements in Table 2:

[0074] Table 2

[0075]

[0076] Note: The rest are Fe, and H≤1.5ppm, O≤13ppm, N≤140ppm

[0077] A method for preparing plastic mold steel with high toughness, high polishability and corrosion resistance, the steps are as follows:

[0078] S1, electric furnace smelting:

[0079] According to the chemical composition content of the smelted steel grades, the ingredients of scrap steel and alloy materials are prepared in advance, and the scrap steel is smelted in an electric furnace. Lime and fluorite are added to form basic slag, the basicity of the basic slag is 2.2, and the molten steel melted in the electric furnace is subjected to dephosphorization and desulfurization treatment; when the molten steel temperature is 1630 ° C, aluminum wire is added for deoxidation, and then tapped Wherein, the alloy material is ferrochromium alloy material, ferrovanadium alloy m...

Embodiment 3

[0099] A hot work die steel, according to the mass fraction, basically consists of the elements in Table 3:

[0100] table 3

[0101]

[0102] Note: The rest are Fe, and H≤1.5ppm, O≤13ppm, N≤140ppm

[0103] A method for preparing plastic mold steel with high toughness, high polishability and corrosion resistance, the steps are as follows:

[0104] S1, electric furnace smelting:

[0105] According to the chemical composition content of the smelted steel, the batching of scrap steel and alloy materials is prepared in advance, and the scrap steel is smelted in an electric furnace. Lime and fluorite are added to form basic slag, the basicity range of the basic slag is 2.1, and the molten steel melted in the electric furnace is subjected to dephosphorization and desulfurization treatment; when the molten steel temperature is 1635 ° C, aluminum wire is added for deoxidation, and then tapped Wherein, the alloy material is ferrochromium alloy material, ferrovanadium alloy materi...

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
diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a preparation method of plastic die steel with high toughness, high polishing property and high corrosion resistance, which is characterized in that on the basis of 2Cr13 steel components, the component design concept of Ni, Mo and V microalloying is adopted for component design; the process route is as follows: electric furnace smelting, ladle refining furnace refining, vacuum refining furnace refining, inert gas shielding electrode blank casting, protective atmosphere constant melting speed electroslag furnace remelting, high-temperature homogenization treatment, multi-directional forging, pre-treatment after forging and ultra-refining treatment. The invention further relates to the plastic die steel with high toughness, high polishing property and high corrosion resistance, the annealed microstructure is uniform, a good spheroidized structure and fine and uniform grain distribution are achieved, the quenched and tempered structure is uniform, fine precipitated phases of Mo, Cr and V carbides play a role in dispersion strengthening in the using process, meanwhile, the hardenability can be improved through a proper amount of Ni element, and the corrosion resistance of the plastic die steel is improved. And grains are refined, so that the toughness and fatigue resistance of the steel are improved.

Description

technical field [0001] The invention relates to a mold steel and a preparation method thereof, in particular to a plastic mold steel with high toughness, high polishability and corrosion resistance and a preparation method thereof. Background technique [0002] With the development of modern industry, the application of molds is more and more extensive. In automobiles, electronics, instrumentation, home appliances, aerospace, building materials, motors and communication equipment, about 60%-80% of the parts and components have to rely on The mold is processed and formed, so it is called the "mother of industry". It is estimated that the proportion of molds that can drive related industries is about 1:100, that is, the development of molds 100 million yuan can drive related industries 10 billion yuan. [0003] The total industrial output value of the world's mold industry has maintained continuous growth. At present, my country's total production of mold steel materials has ...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/02
CPCC22C38/02C22C38/04C22C38/22C22C38/24C22C38/20C22C38/40C22C38/44C22C38/46C22C38/42C22C33/06C21C5/54C21C7/06C21C7/064C21C7/10C21D1/26C22B9/18C21D8/005C21D1/18C21D1/32C21C7/076Y02P10/20
Inventor 关海龙偶正伟韩忠良朱伟峰王光伟丁海峰苏旭廷蒋海清丁涛乙海峰
Owner 江苏宏晟模具钢材料科技有限公司