Phosphorus-free normal-temperature degreasing powder for steel and preparation method thereof

A degreasing powder and normal temperature technology, which is applied in the field of phosphorus-free normal temperature degreasing powder and its preparation, can solve the problems of unscientific, reasonable, safe, unfavorable environmental protection, poor degreasing effect, etc. Good degreasing effect, solve the effect of difficult degreasing

Inactive Publication Date: 2009-11-04
JIANGSU DEMEI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Degreasing powder is used in chemical degreasing treatment. Most of the existing degreasing powders contain phosphorus compounds, which have a certain poisonous effect and are unfavorable to safety and environmental p

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) Mix 20 kilograms of sodium carbonate with 15 kilograms of sodium gluconate, stir evenly to be A powder;

[0029] (2) Mix 1 kg of sodium alkylsulfonate with 1 kg of Pingpingjia (0-20), stir evenly and add A powder, then stir evenly to form B powder;

[0030] (3) Add 3 kilograms of sodium lauryl sulfate, 10 kilograms of sodium iminosuccinate and 50 kilograms of sodium hydroxide into powder B, and stir evenly to obtain a finished phosphorus-free degreasing powder at room temperature.

Embodiment 2

[0032] (1) Mix 45 kilograms of sodium carbonate with 8 kilograms of sodium gluconate, stir evenly to be A powder;

[0033] (2) Mix 2 kg of sodium alkylsulfonate with 4 kg of Pingpingjia (0-20), stir evenly and add A powder, then stir evenly to form B powder;

[0034] (3) Add 4 kilograms of sodium lauryl sulfate, 6 kilograms of sodium iminosuccinate and 31 kilograms of sodium hydroxide into B powder, and stir evenly to obtain a finished phosphorus-free normal temperature degreasing powder.

Embodiment 3

[0036] (1) Mix 30 kilograms of sodium carbonate with 6 kilograms of sodium gluconate, stir evenly to be A powder;

[0037] (2) Mix 5 kg of sodium alkylsulfonate with 3 kg of Pingpingjia (0-20), stir evenly and add A powder, then stir evenly to form B powder;

[0038] (3) Add 6 kilograms of sodium lauryl sulfate, 15 kilograms of sodium iminosuccinate and 35 kilograms of sodium hydroxide into powder B, and stir evenly to obtain a finished phosphorus-free degreasing powder at room temperature.

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PUM

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Abstract

The invention discloses phosphorus-free normal-temperature degreasing powder for steel and a preparation method thereof. The phosphorus-free normal-temperature degreasing powder comprises the following raw materials according to the weight portion: 20-50 of sodium carbonate, 2-15 of gluconic acid sodium salt, 1-10 of sodium alkyl sulfonate, 0.5-5 of peregal (0-20), 3-10 of sodium dodecyl sulfate, 4-20 of imino sodium succinate and 25-60 of sodium hydroxide. The preparation of the degreasing powder is completed by three steps and all the raw materials are fully mixed and uniformly stirred. The degreasing powder has no phosphorus and toxicity, is non-combustible, non-explosive, , safe and environmental-friendly, is used for chemical degreasing on the surface of the steel, and has good degreasing effect under room temperature, energy saving, simple preparation and low use cost.

Description

technical field [0001] The invention relates to a degreasing powder for chemical degreasing treatment on steel surfaces, in particular to a phosphorus-free normal temperature degreasing powder and a preparation method thereof. Background technique [0002] Iron and steel parts need to be cleaned before electroplating, painting, phosphating, and oil sealing. The chemical degreasing method uses the saponification of oil by alkali solution to remove saponifiable oil, and uses the emulsification of surfactant to remove non-saponifiable oil. Degreasing powder is used in chemical degreasing treatment. Most of the existing degreasing powders contain phosphorus compounds, which have a certain poisonous effect and are unfavorable to safety and environmental protection. Moreover, because the raw material ratio is not scientific and reasonable enough, the degreasing effect at room temperature is not good. , needs to be heated during use, consumes energy, and has a high cost. Contents...

Claims

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Application Information

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IPC IPC(8): C23G1/19
Inventor 瞿德勤
Owner JIANGSU DEMEI TECH
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