CN104109869A - Stainless steel cold drawn pipe cleaning working fluid and preparing method thereof - Google Patents

Abstract

A stainless steel cold drawn pipe cleaning working fluid and a preparing method thereof are disclosed. The cleaning working fluid is prepared by mixing following raw materials by weight at room temperature: 52.6-63.6% of water, 3-8% of citric acid, 5-10% of oxalic acid, 0.4-0.9% of sodium molybdate, 4-6% of triethanolamine, 9-15% of polyoxyethylene alkyl ether, 1.5-2.5% of alkylphenol polyoxyethylene, 1.0-2.5% of hydrochloric acid, 0.5-1.2% of sodium tripolyphosphate and 2-6% of ethanol, with the balance being hydrofluoric acid. The method and the cleaning working fluid have characteristics of simple operation, no need of heating, good cleaning effects, no corrosion to surfaces of stainless steel, and capability of maintaining glossiness of the stainless steel. The cleaning working fluid can be repeatedly used, and is free of harm to skin when contacting skin, low-carbon, environmental friendly, and cost-saving.

Description

A kind of stainless steel drawn tube cleaning liquid and preparation method thereof

Technical field

The present invention relates to chemical cleaning technique field, especially a kind of stainless steel drawn tube cleaning liquid and preparation method thereof that is applicable to.

Background technology

At present, stainless steel drawn tube cleans to be difficult to control and processes, and in order to remove pipe inside and outside sinter and dirt, traditional method is to utilize nitric acid and hydrofluoric acid to heat to process, tiny pipe difficulty clean up.Strong acid has strong corrodibility to stainless steel drawn tube surface, and often pipe is outer cleans up, and sinter in pipe does not also come off, the time slightly in long tube sinter come off, the outer heavy corrosion of pipe; And because nitric acid and hydrofluoric acid are through heating generation acid mist, not only human body is had to great harm, and severe contamination air, the discharge of waste acid water is severe contamination water resources also.

Summary of the invention

The technical problem to be solved in the present invention is: overcome the deficiencies in the prior art, provide a kind of can wash tube in and the sinter outside pipe do not corrode again stainless steel drawn tube, stainless steel drawn tube cleaning liquid harmless and free from environmental pollution and preparation method thereof.

The technical solution adopted for the present invention to solve the technical problems is: a kind of stainless steel drawn tube cleaning liquid, and described stainless steel drawn tube cleaning liquid is become by the mixed raw material of following weight percent:

The weight percent of wherein said hydrochloric acid is 31%.

Further, described stainless steel drawn tube cleaning liquid is become by the mixed raw material of following weight percent:

The weight percent of wherein said hydrochloric acid is 31%.

A preparation method for stainless steel drawn tube cleaning liquid, has following steps:

(1), under normal temperature, in stirrer, adding weight percent is the water of 52.6%-63.6%;

(2), throw in while stirring the citric acid that weight percent is 3%-8%;

(3), throw in while stirring the oxalic acid that weight percent is 5%-10%;

(4), throw in while stirring the Sodium orthomolybdate that weight percent is 0.4%-0.9%;

(5), throw in while stirring the trolamine that weight percent is 4%-6%;

(6), throw in while stirring the fatty alcohol-polyoxyethylene ether that weight percent is 9%-15%;

(7), throw in while stirring the alkylphenol polyoxyethylene that weight percent is 1.5%-2.5%;

(8), throw in while stirring the hydrochloric acid that weight percent is 1.0%-2.5%;

(9), throw in while stirring the tripoly phosphate sodium STPP that weight percent is 0.5%-1.2%;

(10), throw in while stirring the ethanol that weight percent is 2%-6%;

(11), throw in while stirring the hydrofluoric acid that weight percent is surplus;

(12), after whole feeding in raw material, stir again and within 20-30 minute, be finished product;

The weight percent of wherein said hydrochloric acid is 31%.

The invention has the beneficial effects as follows: the present invention is simple to operate, without heating, cleaning performance is good, does not corrode stainless surface simultaneously, keeps stainless glossiness; And stainless steel drawn tube cleaning solution for descaling can reuse, to skin contact without injury, low-carbon environment-friendly, cost-saving.

Embodiment

The present invention is further illustrated now.In embodiment, fatty alcohol-polyoxyethylene ether is JFC permeate agent, and alkylphenol polyoxyethylene is emulsifier op-10.

A preparation method for stainless steel drawn tube cleaning liquid, has following steps: under (1), normal temperature, in stirrer, adding weight percent is the water of 576 kilograms; (2), throw in while stirring 60 kilograms of content 99.3% citric acids; (3), throw in while stirring 80 kilograms of content 99.6% oxalic acid; (4), throw in while stirring 6 kilograms of content 99% Sodium orthomolybdates; (5), throw in while stirring 50 kilograms of content 85% trolamines; (6), throw in while stirring 120 kg JFC permeate agent; (7), throw in while stirring the emulsifier op-10 of 20 kilograms; (8), throw in while stirring 20 kilograms of content 31% hydrochloric acid; (9), throw in while stirring 8 kilograms of tripoly phosphate sodium STPPs; (10), throw in while stirring 40 kilograms of ethanol; (11), throw in while stirring 20 kilograms, content 90% hydrofluoric acid; (12), after whole feeding in raw material, stir again and within 20-30 minute, be finished product.

The above-mentioned foundation desirable embodiment of the present invention of take is enlightenment, and by above-mentioned description, relevant staff can, within not departing from the scope of this invention technological thought, carry out various change and modification completely.The technical scope of this invention is not limited to the content on specification sheets, must determine its technical scope according to claim scope.

Claims (3)

1. a stainless steel drawn tube cleaning liquid, is characterized in that: described stainless steel drawn tube cleaning liquid is become by the mixed raw material of following weight percent:

The weight percent of wherein said hydrochloric acid is 31%.

2. stainless steel drawn tube cleaning liquid according to claim 1, is characterized in that: described stainless steel drawn tube cleaning liquid is become by the mixed raw material of following weight percent:

The weight percent of wherein said hydrochloric acid is 31%.

3. a preparation method for stainless steel drawn tube cleaning liquid, is characterized in that: have following steps:

(1), under normal temperature, in stirrer, adding weight percent is the water of 52.6%-63.6%;

(2), throw in while stirring the citric acid that weight percent is 3%-8%;

(3), throw in while stirring the oxalic acid that weight percent is 5%-10%;

(4), throw in while stirring the Sodium orthomolybdate that weight percent is 0.4%-0.9%;

(5), throw in while stirring the trolamine that weight percent is 4%-6%;

(6), throw in while stirring the fatty alcohol-polyoxyethylene ether that weight percent is 9%-15%;

(7), throw in while stirring the alkylphenol polyoxyethylene that weight percent is 1.5%-2.5%;

(8), throw in while stirring the hydrochloric acid that weight percent is 1.0%-2.5%;

(9), throw in while stirring the tripoly phosphate sodium STPP that weight percent is 0.5%-1.2%;

(10), throw in while stirring the ethanol that weight percent is 2%-6%;

(11), throw in while stirring the hydrofluoric acid that weight percent is surplus;

(12), after whole feeding in raw material, stir again and within 20-30 minute, be finished product;

The weight percent of wherein said hydrochloric acid is 31%.