Quenching heat treatment process for shearing slices of lead ingot cold granulator

A cold granulator and tempering treatment technology, applied in heat treatment furnaces, heat treatment equipment, quenching agents, etc., can solve the problems of large performance change decline, weak temperature resistance and aging resistance, unfavorable healthy development of enterprises, etc., to achieve improvement Heat exchange, good temperature resistance, and the effect of promoting heat exchange

Inactive Publication Date: 2018-06-01
蚌埠市华鼎机械科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the PAG quenching agent has many excellent characteristics, there are still defects in use. For example, the amount of PAG in the quenching agent is relatively high, usually 10-20% by mass, and the temperature resistance and aging resistance are weak. , a large degree of performance change and other problems
In addition, the method of quenching also determines the quality of quenching to a large extent. At present, most methods are to immerse the steel directly in the quenching agent for quenching. The method is relatively rough, and the different stages of steel cooling are not reasonably controlled, resulting in The problem of quenching and cracking is prone to occur, and the pass rate of some process methods is only about 50%, which is obviously not conducive to the healthy development of enterprises

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A quenching heat treatment process for shearing and slicing by a lead ingot cold granulator, comprising the following steps:

[0029] (1) Pretreatment of slice surface:

[0030] Carry out impurity removal treatment on the surface of the slice to be processed, remove the dust, oil, and iron filings remaining on the surface, and then dry it for later use;

[0031] (2) Quenching agent preparation:

[0032] The substances are weighed according to the corresponding weight ratio, and the quenching agent is obtained after blending and stirring evenly. 1.5% polyvinyl alcohol, 0.1% boric acid, 0.05% copper sulfate, 0.5% carboxymethyl cellulose, 0.2% nano titanium dioxide, 0.5% sodium lauryl sulfate, 0.4% potassium nitrate, 0.3% potassium sorbate, the balance is water ;

[0033] (3) Normalizing treatment:

[0034] Put the slices processed in step (1) into the heating furnace, and control the temperature in the initial heating furnace not to be higher than 100°C. After the sli...

Embodiment 2

[0047] A quenching heat treatment process for shearing and slicing by a lead ingot cold granulator, comprising the following steps:

[0048] (1) Pretreatment of slice surface:

[0049] Carry out impurity removal treatment on the surface of the slice to be processed, remove the dust, oil, and iron filings remaining on the surface, and then dry it for later use;

[0050] (2) Quenching agent preparation:

[0051] The substances are weighed according to the corresponding weight ratio, and the quenching agent is obtained after blending and stirring evenly. 2.5% polyvinyl alcohol, 0.15% boric acid, 0.08% copper sulfate, 1% carboxymethyl cellulose, 0.3% nano titanium dioxide, 0.7% sodium lauryl sulfate, 0.6% potassium nitrate, 0.5% potassium sorbate, the balance is water ;

[0052] (3) Normalizing treatment:

[0053] Put the slices processed in step (1) into the heating furnace, and control the temperature in the initial heating furnace not to be higher than 100°C. After the slic...

Embodiment 3

[0066] A quenching heat treatment process for shearing and slicing by a lead ingot cold granulator, comprising the following steps:

[0067] (1) Pretreatment of slice surface:

[0068] Carry out impurity removal treatment on the surface of the slice to be processed, remove the dust, oil, and iron filings remaining on the surface, and then dry it for later use;

[0069] (2) Quenching agent preparation:

[0070] The substances are weighed according to the corresponding weight ratio, and the quenching agent is obtained after blending and stirring evenly. 3.5% polyvinyl alcohol, 0.2% boric acid, 0.1% copper sulfate, 1.5% carboxymethyl cellulose, 0.4% nano titanium dioxide, 0.8% sodium lauryl sulfate, 0.7% potassium nitrate, 0.6% potassium sorbate, the balance is water ;

[0071] (3) Normalizing treatment:

[0072] Put the slices processed in step (1) into the heating furnace, and control the temperature in the initial heating furnace not to be higher than 100°C. After the slic...

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PUM

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Abstract

The invention discloses a quenching heat treatment technology of a shearing section of a lead pig cold granulator, and relates to the heat treatment technology. The technology comprises following steps: firstly, section surface pretreatment, secondly, quenching agent preparing, thirdly, normalizing treatment, fourthly, quenching treatment and fifthly, tempering treatment. The quenching heat treatment technology can effectively reduce steel distortion and cracking phenomenon, the product yield is up to 99.5% or above, the quenching speed can be obviously improved, the duration of the quenching technology is shortened by 20% to 25%, meanwhile, the quenching agent has the good antibiosis, anticorrosion and aging-resistance properties, after multi-time use, the good property can be still kept, and the service life is long.

Description

technical field [0001] The invention relates to a heat treatment process, in particular to a quenching heat treatment process for shearing and slicing lead ingots with a cold granulator. Background technique [0002] Lead ingot cold granulator is the most advanced product on the lead-acid battery production line. The active power of the equipment all adopts the hydraulic system, the operation process is simple and convenient, the operation condition is stable and good, and it has the functions of environmental protection, energy saving, consumption reduction and efficiency increase. Since it was put into use in the market, the social and economic benefits have been remarkable, and it has won unanimous praise from the industry. The operation is balanced and reliable, without noise. The lead ingot is conveyed by the scraper to the slicer, and the lead ingot is cut into lead sheets with a specified thickness through the cutting of the slice, and then processed in a process. A...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21D1/25C21D1/28C21D1/60C21D9/18
CPCC21D1/25C21D1/28C21D1/60C21D9/18
Inventor 余华乔
Owner 蚌埠市华鼎机械科技有限公司
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