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Anti-rust defect detecting liquid and its preparing technique

A preservative, weight percentage technology, applied in the direction of optical testing flaws/defects, etc., can solve the problems of poor results and high cost of use, and achieve the effects of showing clear magnetic marks, avoiding pollution, and reducing flaw detection costs

Inactive Publication Date: 2010-06-02
李建明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to address the above problems, to provide a kind of penetration, good dispersibility, display magnetic marks clear, high sensitivity, save a lot of oil, avoid pollution, reduce the cost of flaw detection rust; solve the problems of the prior art There are technical problems such as poor effect and high cost of use

Method used

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  • Anti-rust defect detecting liquid and its preparing technique

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Embodiment Construction

[0013] The components and weight percentages included in this anti-rust flaw detection solution are: 3.0% carboxylic ester; 15.0% polyalcohol; 0.5% non-ferrous metal preservative; 5.0% ionic surfactant; 5.0%; 20.0% dispersant; 5.0% magnetic adsorbent; 7.0% developer; 0.5% foam suppressor;

[0014] The carboxylic ester is the reaction product of triethanolamine and sebacic acid; the polyol is triethanolamine or diethanolamine; the non-ferrous metal preservative is thiadiazole or benzodiazepine; the ionic surface active The agent is NP-10 and Siben-80 or OP-10 and Siben-80; the dispersant is fatty alcohol and ethylene oxide condensate; the magnetic adsorbent is polar pigment or magnetic powder; The developer is silver bromide and sodium thiosulfate; the foam suppressor is simethicone. This anti-rust flaw detection fluid aims at the disadvantages of oil flaw detection fluid, it is a new type of water magnetic suspension flaw detection fluid, which is used for flaw detection of p...

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Abstract

The invention relates to a rust prevention fault detection liquid and the manufacturing technics. The rust prevention fault detection liquid comprises the following composites and the weight percentage composition are as follows: carboxylic ester 0.8 to 5.0 percent; polylol 2.0 to20.0 percent; nonferrous metal antiseptic 0.2 to 1.0 percent; ionic surface active agent 1.0 to 10.0 percent; alkylphenol cyclochlorotine polymer 1.0 to 10.0 percent; dispersing agent 4.0 to 30.0 percent; magnetic sorbent 1.0 to 10.0 percent; developer 3.0 to 10.0 percent; foam inhibitor 0.1 to 1.0 percent; water as margin. The preparation procedures are that: a. putting carboxylic and polylol into a reaction kettle, increasing the temperature into 70 to 90 DEG.C, and then stopping heating; b. after mixing evenly,adding non ferrous metal aseptic, and reducing the temperature into 40 to 50 DEG.C; c. then adding the ionic surface active agent, the alkylphenol cyclochlorotine polymer and the dispersing agent, and after a period of time, adding magnetic sorbent; d. mixing for a period of time, then adding the developer and the foam inhibitor, and adding sufficient water, and then mixing for a period of time.The invention has the advantages of high efficiency, economy, safety, noncorrosibility, cleanness and acceptance.

Description

technical field [0001] The invention relates to the technical field of flaw detection, in particular to an antirust flaw detection liquid and a preparation process thereof. Background technique [0002] Flaw detection is a necessary inspection procedure to check whether there are cracks, scars and other defects in precision parts. There are two methods: one is to obtain the result after scanning the workpiece by ray. This method is simple and efficient, but the equipment investment cost is too high. The other is to dissolve the special magnetic powder in oil, immerse the workpiece in it, and the workpiece will absorb the magnetic powder after conduction, so that the naked eye can distinguish whether there is a defect. This method has a small investment, and most of the general enterprises adopt this method, but there are also obvious deficiencies: 1. Use light volatile oils such as kerosene as carriers. The oil and gas in the oil and gas have very direct damage to the res...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/91
Inventor 李建明
Owner 李建明
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