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A kind of metal melting protection agent and its preparation method and application

A metal melting and protective agent technology, which is applied in the fields of metal melting protective agent and its preparation, lead and lead alloy melting, and metal melting technology. The effect of economic benefits

Active Publication Date: 2017-12-22
MINHUA POWER SOURCE CO LTD FUJIAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The protective agent of this mixed component cannot completely form a uniform liquid state when the surface of the high-temperature molten metal is covered. Although it has a certain effect on reducing the amount of lead slag, it cannot avoid the generation of smoke and dust

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] This embodiment provides a metal melting protectant and a preparation method thereof. The components of the protectant are proportioned by mass percentage: 33% of sodium carbonate, 36% of potassium carbonate, and 31% of lithium carbonate. During the preparation process, first weigh each component, add it into a mixer, and stir it fully; then use the static melting method to put the above-mentioned uniformly mixed mixture into a high-temperature-resistant container, and heat it to 700-800°C in a high-temperature furnace , constant temperature melting for 3 to 4 hours; then the above molten mixture is naturally cooled, crushed, dried and packaged to obtain the protective agent.

Embodiment 2

[0025] This example provides another metal melting protectant and its preparation method. The protectant components are proportioned by mass percentage: 30% sodium carbonate, 35% potassium carbonate, 30% lithium carbonate, and 5% boric acid. During the preparation process, first weigh each component, add it into a mixer, and stir it fully; then use the static melting method to put the above-mentioned uniformly mixed mixture into a high-temperature-resistant container, and heat it to 500-600°C in a high-temperature furnace , constant temperature melting for 1 to 2 hours; then the above molten mixture is naturally cooled, crushed, dried and packaged to obtain the protective agent.

Embodiment 3

[0027] This embodiment provides another metal melting protectant and its preparation method. The protector components are proportioned by mass percentage: 33% sodium carbonate, 33.5% potassium carbonate, 31% lithium carbonate, and 2.5% calcium chloride. During the preparation process, each component is added into the mixer, and fully stirred evenly; then the above-mentioned uniformly mixed mixture is put into a high-temperature-resistant container by the static melting method, and heated to 450-550°C in a high-temperature furnace, and melted at a constant temperature for 2 ~3h; the above molten mixture is naturally cooled, crushed, dried, and packaged to obtain the protective agent.

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Abstract

The invention discloses a metal melting protective agent and a preparation method and application thereof, and relates to a metal melting process. The metal melting protective agent comprises the following components in percentage by mass: 5-60% of sodium carbonate, 10-70% of potassium carbonate, 5-60% of lithium carbonate, 10-20% of accessories, and 100% of total amount. The accessories can be selected from at least one of boric acid, calcium chloride and calcium fluoride. All the components are heated to a temperature of 300-800 DEG C after uniform mixing to obtain a melting mixture; and the melting mixture is cooled, crushed and dried to obtain the metal melting protective agent. The metal melting protective agent can be applied to the production of melting pure lead or lead alloys and the melting process of other metals, besides of lead, with a melting point range of 200-800 DEG C or alloys thereof. The lead and the lead alloy can be effectively saved; the production cost is reduced; the economic benefit is increased; the environmental pollution in the production process of lead acid accumulators can be reduced; and the lead pollution is reduced.

Description

technical field [0001] The invention belongs to the technical field of metal smelting and the technical field of lead-acid battery production, and relates to a metal melting process, in particular to melting of lead and lead alloys, and metals other than lead with a melting point in the range of 200-800°C or other A metal melting protective agent for alloy melting process, its preparation method and application. Background technique [0002] Lead-acid batteries have been used for more than 150 years. They have perfect production technology, low price, high safety, and obvious advantages in distribution network and recycling. It is widely used in electric bicycles, hybrid locomotives, aviation, lighting communications, energy storage and other systems. my country's lead output reached 4.475 million tons in 2013 and 4.221 million tons in 2014, of which more than 80% of the lead consumption was used in the manufacture of lead-acid batteries. my country has now become the worl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/02C22C11/00
Inventor 高军陈学能蔡跃宗杨勇黄连清林宏名谢旭东黄建国
Owner MINHUA POWER SOURCE CO LTD FUJIAN
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