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Degreaser for cleaning rolling hard coil and using method thereof

A technology of degreasing agent and rolling hardening, which is applied in the direction of chemical instruments and methods, detergent compositions, surface active detergent compositions, etc. It can solve the problems of loss of economy and cheapness, difficult storage, deliquescence and reduced efficiency, etc., to achieve It meets the requirements of instant preparation and timely use, and is convenient for storage and use.

Active Publication Date: 2009-10-07
CHANGSHU HUAYE STEEL STRIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, the degreasing agents obtained from commercially available channels all have the following two common problems: first, they are not easy to store under normal temperature conditions, and are prone to deliquescence and affect the degreasing effect, which is not conducive to ensuring the quality of galvanizing, especially as a heat treatment agent. In order to ensure the normal and orderly production, galvanizing enterprises often face a dilemma because it is difficult to buy and use the degreasing agent objectively. Too little will affect the production. Accordingly, the hot-dip galvanizing industry generally hopes to improve the existing degreasing agent, and even more hopes to have a technical teaching suitable for the self-made degreasing agent for cleaning rolled hard coils; Second, the price is extremely expensive, about 10,000 yuan (RMB) per ton, which is not economically cheap

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Take by weight 16 kilograms of soda ash, 4.2 kilograms of sodium lignosulfonate, 4.3 kilograms of sodium tripolyphosphate, sodium pentahydroxycaproate (C 6 h 11 o 7 Na) 2.5 kilograms, emulsifying agent is 3 kilograms of sodium sulfate, 3 kilograms of XL50 type surfactant (preferably adopt the XL50 type isomerism alcohol ether active agent in the Lutensol XL series produced by BASF or select for use by Wen Jun, Guangzhou City, Guangdong Province, China The XL50 activating agent that chemical raw material Co., Ltd. produces and sells), 67 kilograms of caustic soda, the aforementioned raw material that takes by weighing is put into metal such as stainless steel or nonmetal such as enamel tank or pottery jar, stirs by hand with tools such as shovels The method is fully stirred to obtain 100 kilograms of degreaser products, and then packed into a double-layered packaging bag of polypropylene woven bag lined with polyethylene plastic film for use.

[0034] In the above-ment...

Embodiment 2

[0036] Weigh 30 kilograms of soda ash, 5 kilograms of sodium lignosulfonate, 5.2 kilograms of sodium tripolyphosphate, disodium sebacic acid (NaOO(CH) 8 COONa) 3 kilograms, emulsifier i.e. 3.3 kilograms of sodium sulfate, 3.5 kilograms of XL50 type surfactant, 50 kilograms of caustic soda, drop into the stainless steel container with stirring device and stir evenly, obtain the degreasing agent product of 100 kilograms, all the other are the same to Description of Example 1.

Embodiment 3

[0038] Take by weight 36 kg of soda ash, 5 kg of sodium lignosulfonate, 5.8 kg of sodium tripolyphosphate, magnesium sulfate (MgSO 4 ·7H 2 (2) 5 kilograms, 4 kilograms of sodium sulfate, 3.8 kilograms of XL50 type tensio-active agents, 40 kilograms of caustic soda, drop into ceramic exposure cylinder and stir evenly with hand, obtain the degreasing agent product of 100 kilograms, all the other are all the same to embodiment 1 description of.

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PUM

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Abstract

The invention discloses a degreasing agent for cleaning rolled hard coils and a preparation and use method thereof, which belong to the technical field of metal material surface cleaning agents. It is composed of the following raw materials in parts by weight: 15-40 parts of soda ash; 3-6 parts of sodium lignosulfonate; 3-6 parts of sodium tripolyphosphate; 2-6 parts of self-defoaming emulsifier; 4 parts; 2-4 parts of surfactant; 40-70 parts of caustic soda. Advantages: all the raw materials constituting the degreasing agent are easy to obtain, non-toxic, non-flammable and cheap; because sodium tripolyphosphate is used in the raw materials, the hexahydrate (Na5P3O10·6H2O) formed after absorbing water has dry characteristics, so that it can Ensure that the product avoids deliquescence and agglomeration, so that the degreasing agent product is convenient to store without reducing its efficacy; the preparation method is very suitable for the enterprise's own preparation, meeting the requirements of instant preparation and timely use; the use method of the degreasing agent can reflect the friendliness to the environment and easy use , Help reduce costs.

Description

technical field [0001] The invention belongs to the technical field of metal material surface cleaning agents, and in particular relates to a degreasing agent for cleaning hard rolled coils, and also relates to a method for preparing and using the degreasing agent Background technique [0002] Hard-rolled coil refers to the coil obtained by continuous rolling of hot-rolled pickled coil at room temperature. It is also called strip steel or hard-rolled coil in the industry. Since the surface of the hard-rolled coil has rolling oil stains left during rolling, when it is put into the hot-dip galvanizing line for hot-dip galvanizing on its surface, the rolling oil stains must be removed, otherwise the brightness cannot be obtained. Clear, good adhesion, excellent corrosion resistance coating. The degreasing agent plays the role of making the hard rolled coil obtain a clean surface before galvanizing. Its mechanism of action is to remove the rolling oil and anti-rust oil attached...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23G1/14C11D1/12C11D3/34C11D3/06
Inventor 郭留华徐胜刚朱夏
Owner CHANGSHU HUAYE STEEL STRIP
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