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Composite heating agent for die steel

A heat-generating agent and mold steel technology, applied in the direction of heat exchange materials, chemical instruments and methods, etc., can solve the problems of high cost, low heat-generating efficiency, difficulty in meeting the use requirements, etc. concentrated effect

Inactive Publication Date: 2017-11-03
晋江市池店镇泉捷鞋机设计服务部
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a composite exothermic agent for mold steel to overcome the shortcomings of low exothermic efficiency, high cost and difficulty in meeting the use requirements of exothermic agents commonly used at present

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0012] Composite heating agent for mold steel The heating agent is made of the following raw materials in parts by weight: 5 parts of bauxite, 6 parts of boron nitride, 3.5 parts of magnesium chloride, 6 parts of zinc silicate, 7 parts Phlogopite, 2.7 parts of sodium chloride, 7.4 parts of aluminum powder, 9.6 parts of diatomaceous earth, 5 parts of vermiculite, 4 parts of quartz sand, 3.7 parts of acidified graphite, 2.8 parts of silicon calcium powder, 2.5 parts Parts of potassium nitrate, 8 parts of activated calcium oxide, 3.3 parts of sodium bicarbonate and 4.6 parts of potassium chlorate. The particle size of each component raw material is preferably 50-300 mesh. The component raw materials are crushed and mixed evenly to obtain a composite heating agent. The heating agent can be a powder or a block product pressed into a specified shape. The exothermic agent of this embodiment has a volume change rate within 13% in a high-temperature environment, so that the exothermic ...

Embodiment approach 2

[0014] The exothermic agent of the present embodiment is made from the following raw materials by weight: 4 parts of bauxite, 7 parts of boron nitride, 4 parts of magnesium chloride, 7 parts of zinc silicate, 8 parts of phlogopite, 2 parts Parts of sodium chloride, 7 parts of aluminum powder, 10 parts of diatomaceous earth, 6 parts of vermiculite, 3 parts of quartz sand, 4 parts of acidified graphite, 4 parts of silicon calcium powder, 3 parts of potassium nitrate, 9 parts of activated calcium oxide, 4 parts of sodium bicarbonate and 5 parts of potassium chlorate. The particle size of each component raw material is preferably 100-350 mesh, and each component raw material is crushed and mixed evenly to obtain a composite heating agent. The heating agent can be a powder or a block product pressed into a specified shape. The exothermic agent of this embodiment has a volume change rate within 14% in a high-temperature environment, has a fast burning speed, concentrates heat genera...

Embodiment approach 3

[0016] The exothermic agent of the present embodiment is made from the following raw materials by weight: 6 parts of bauxite, 5 parts of boron nitride, 3 parts of magnesium chloride, 5 parts of zinc silicate, 6 parts of phlogopite, 3 parts Parts of sodium chloride, 8 parts of aluminum powder, 9 parts of diatomaceous earth, 4 parts of vermiculite, 5 parts of quartz sand, 3 parts of acidified graphite, 2 parts of silicon calcium powder, 2 parts of potassium nitrate, 6 parts of activated calcium oxide, 3 parts of sodium bicarbonate and 4 parts of potassium chlorate. The particle size of each component raw material is 50-300 mesh, each component raw material is crushed separately and mixed uniformly to obtain a composite heating agent. The heating agent can be a powder or a block product pressed into a specified shape. The exothermic agent of this embodiment has a volume change rate within 15% in a high-temperature environment, has a fast burning speed, concentrates heat generatio...

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Abstract

The invention relates to a composite heating agent for die steel, made from, by weight, 7-8 parts of aluminum powder, 6-9 parts of activated calcium oxide, 4-6 parts of bauxite, 3-4 parts of magnesium chloride, 2-3 parts of potassium nitrate, 6-8 parts of phlogopite, 2-3 parts of sodium chloride, 5-7 parts of boron nitride, 5-7 parts of zinc silicate, 4-6 parts of vermiculite, 3-5 parts of quartz sand, 9-10 parts of diatomite, 3-4 parts of acidified graphite, 2-4 parts of silicon-calcium powder, 3-4 parts of sodium bicarbonate, and 4-5 parts of potassium chloride. The composite heating agent has a volume variation rate of 15% and below in a high-temperature environment so that the heating agent has high burning speed and more concentrated heat generation; the heating generation of the composite heating agent is increased by 35% and above as compared to traditional heating agents; less heating agent is used, production cost is reduced, and pollution emission is decreased.

Description

technical field [0001] The invention relates to a heating agent, in particular to a composite heating agent which is especially suitable for mold steel. Background technique [0002] At present, most of the heating agents used in the melting and forming process of mold steel are configured according to the principle of thermite reaction (such as heating agents made of metal aluminum, sodium nitrate, iron powder, wood chips, expanded graphite, etc.), such heating During the use of the exothermic agent, it is often due to the thermal expansion of the exothermic agent (at least 2 times the expansion), resulting in slow burning speed, low heating efficiency, and heat divergence, resulting in low processing efficiency of mold steel, high temperature is difficult to achieve, and a large amount needs to be used High-cost heating agent products are difficult to meet the needs of new technologies. Contents of the invention [0003] The invention provides a composite exothermic age...

Claims

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Application Information

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IPC IPC(8): C09K5/18
CPCC09K5/18
Inventor 王星河
Owner 晋江市池店镇泉捷鞋机设计服务部
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