A kind of metal melting protective agent with chloride as the main body and preparation method thereof

A metal melting and chloride technology, applied in the field of metal melting protective agents, can solve the problems of incomplete unification and achieve the effects of reducing production costs, increasing economic benefits, and saving lead and lead alloys

Active Publication Date: 2018-03-30
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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  • A kind of metal melting protective agent with chloride as the main body and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0030] This embodiment provides a protective agent for molten lead or lead alloy and a preparation method thereof. The following three components are implemented according to mass percentage: 30% to 70% of sodium chloride, 20% to 60% of potassium chloride, and 1 %~20%, the specific implementation ratio of the three substances can be: sodium chloride:potassium chloride:lithium chloride=51:43:6 (mass percentage). 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 600-700°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

[0032] This embodiment provides another protective agent for molten lead or lead alloy and its preparation method. The following 4 components are implemented by mass percentage: 30% to 70% of sodium chloride, 20% to 60% of potassium chloride, lithium chloride 1% to 20%, sodium carbonate 0.1% to 5%. In the preparation process, firstly, the protective agent and sodium carbonate prepared in Example 1 were added into the mixer in a mass ratio of 100:1, and fully stirred evenly; then the static melting method was used to put the above-mentioned uniformly mixed mixture into the Put it in a high-temperature container, heat it to 450-550°C in a high-temperature furnace, and melt it at a constant temperature for 1-2 hours; the above-mentioned molten mixture is naturally cooled, crushed, dried, and packaged to obtain the protective agent.

Embodiment 3

[0034] This embodiment provides another protective agent for molten lead or lead alloy and its preparation method. The following 4 components are implemented by mass percentage: 30% to 70% of sodium chloride, 20% to 60% of potassium chloride, lithium chloride 1% to 20%, potassium carbonate 0.1% to 5%. In the preparation process, firstly, the protective agent and potassium carbonate prepared in Example 1 were added into the blender according to the mass ratio of 100:1, and fully stirred evenly; then the static melting method was used to put the above-mentioned uniformly mixed mixture into the Put it in a high-temperature container, heat it to 450-550°C in a high-temperature furnace, and melt it at a constant temperature for 1-2 hours; the above-mentioned 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 with chloride as a body and a preparing method of the metal melting protective agent and relates to metal melting protective agents. The metal melting protective agent comprises, by mass percentage, 30%-70% of sodium chloride, 20%-60% of potassium chloride, 1%-20% of lithium chloride and x% of accessory, and the total mass is 100%. The preparing method includes the steps that all the components are evenly mixed according to the proportion, and a mixture is obtained; the mixture is put into a container to be heated, and a molten mixture is obtained after melting; and the molten mixture is cooled and then smashed and dried, and the metal melting protective agent with chloride as the body is obtained. The protective agent exists in the manner of low-density ion liquid in a high-temperature state, the density of the protective agent is far lower than that of molten metal, and continuous batch charging in the production process is facilitated. The metal melting protective agent can be used for melting technologies of other metal, except lead, or alloy, with the melting point in the range of 200-800 DEG C, metal raw materials can be effectively saved, production cost is reduced, economic benefits are increased, and pollution can also be reduced.

Description

technical field [0001] The invention relates to a metal melting protectant, in particular to a metal melting protectant with chloride as the main body and a preparation method thereof. Background technique [0002] The invention and use of lead-acid battery has a history of more than 150 years. Due to its mature production process, low cost, high safety, obvious advantages in distribution network and recycling, it is still widely used as an electric energy source. Mainly used in electric bicycles, hybrid locomotives, aviation, lighting communications, energy storage and other fields. my country's lead production in 2013 and 2014 reached 4.475 million tons and 4.221 million tons respectively, of which more than 80% of the lead consumption was used in the manufacture of lead-acid batteries. my country has now become the world's largest lead producer, lead-acid battery producer, lead and lead-acid battery exporter, and lead consumer. [0003] In the production process of lead...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/06C22C1/02C22C11/00
CPCC22C1/02C22C1/06C22C11/00
Inventor 陈学能高军蔡跃宗杨勇黄连清高贵才林宏名谢旭东黄建国
Owner MINHUA POWER SOURCE CO LTD FUJIAN
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