WO2018218426A1

WO2018218426A1 - Oil remover, metal component, and oil removal treatment method therefor

Info

Publication number: WO2018218426A1
Application number: PCT/CN2017/086348
Authority: WO
Inventors: 王饶玲
Original assignee: 深圳市恒兆智科技有限公司
Priority date: 2017-05-27
Filing date: 2017-05-27
Publication date: 2018-12-06
Also published as: CN110719971A

Abstract

An oil remover, a metal component, and an oil removal treatment method therefor. The oil remover is used for the surface pretreatment of the metal component. Based on 1000 parts by weights, the oil remover comprises the following components: 1 to 200 parts of alkali, 25 to 50 of borax, 10 to 100 of alkyl polyglucoside, 25 to 50 parts of phosphate, 5 to 10 parts of nonylphenol polyoxyethylene ether, 2 to 10 parts of defoamer, 1 to 5 parts of corrosion inhibitor and the balance water. The oil remover can be separately used, has two types of non-ionic surfactants cooperating and mix with each other to produce a synergistic effect, has good animal and vegetable oil removal effects, does not corrode a workpiece product itself, does not affect any post-process, is convenient to operate, and has low use costs.

Description

Title of Invention: Degreaser, Metal Parts and Degreasing Treatment Method Field of Technology

[0001] The present invention relates to the field of metal surface treatment technologies, and in particular, to a degreaser, a metal member, and a degreasing method thereof.

Background technique

[0002] In order to improve the surface properties or appearance of a product, the surface treatment technology of the workpiece is usually applied. For example, the surface treatment of metals, aluminum, iron and their alloys goes deep into all walks of life. Moreover, most workpieces require pre-treatment before surface treatment, for example, cleaning, decontamination and degreasing.

[0003] Generally, in the mechanical processing and electrical and electronic industries, degreasing treatment is required before metal plating, oxidation, passivation or spraying. The traditional degreaser has a single structure and has a certain removal effect on a single oil stain. However, the metal removal effect is not ideal for a compound with a complicated composition or a relatively heavy oil stain. The solvent can remove heavy oil, but the energy consumption is large and the smell is large. The environment is extremely harmful.

technical problem

[0004] In view of the above, a degreaser capable of effectively cleaning workpiece oil, low energy consumption, simple operation, and odorless, and a degreasing treatment method for metal parts and a metal member obtained by degreasing treatment are provided.

Problem solution

Technical solution

[0005] A degreaser comprising 1000 parts by weight of the following components by weight: 1-200 parts of base, 25-50 parts of borax, 10-100 alkyl polyglycosides, 25-50 parts of phosphate, 5-10 parts of nonylphenol ethoxylate, 2-10 parts of antifoaming agent, 1-5 parts of corrosion inhibitor, and the balance is water.

[0006] A metal parts degreasing treatment method, comprising the steps of: formulating a degreaser as described above; dissolving the degreaser in water to prepare a degreaser solution, and degreaser in the degreaser solution The mass percentage is 2-15%, the free alkalinity of the degreaser solution is controlled to be 2-60 pt; and the temperature of the degreaser solution is controlled to be 10-80 °C. The metal member is immersed in the degreaser solution, and after a predetermined daytime treatment, the metal member is washed with water and dried.

And a metal member whose surface is treated by the metal member degreasing treatment method as described above.

Advantageous effects of the invention Beneficial effect

[0008] The above degreaser is compounded by a non-ionic surfactant nonylphenol ethoxylate and an alkyl polyglycoside and a defoaming inhibitor, and can effectively clean metal parts and The oil on the surface of the alloy has no corrosion to the workpiece itself, and does not affect any post-process. It is suitable for pre-oil treatment of hardware factories, electroplating plants, spray plants, oxidation plants, etc. It has a wide range of applications and can be applied to various metals. Oil treatment, for example, copper, iron, zinc, magnesium, iron and their alloys.

Embodiments of the invention

The present invention will be described in detail below with reference to specific embodiments.

[0010] The embodiment of the present invention provides a degreaser, comprising 1000 parts by weight, including the following parts by weight: 1-200 parts of alkali, 25-50 parts of borax, 10-100 alkyl polyglycosides, 25- 50 parts of phosphate, 5-10 parts of nonylphenol ethoxylate, 2-10 parts of antifoaming agent, 1-5 parts of corrosion inhibitor, balance of water.

[0011] Specifically, the base is preferably sodium hydroxide and soda ash, the weight fraction of the base is preferably 1-150 parts, and the borax is preferably 30-40 parts by weight, the alkylpolyglycoside The parts by weight are preferably 30-80 parts, and the phosphate is preferably sodium tripolyphosphate, trisodium phosphate, sodium pyrophosphate or disodium hydrogen phosphate in a weight ratio of 30-40 parts.

[0012] Preferably, the nonylphenol ethoxylate has a weight fraction of 6-8 parts, and the antifoaming agent is oleic acid, tributyl phosphate or silicone, and the weight fraction of the antifoaming agent The number is 4-8 parts, the corrosion inhibitor is benzoic acid or benzotriazole, and the corrosion inhibitor is 2-4 parts by weight.

[0013] In the above degreaser, the alkylphenol ethoxylate and the alkylpolyglycoside are nonionic surfactants, and the two cooperate with each other, and the two are compounded to produce a synergistic effect, and the effect of removing the animal and vegetable oil is good. These two surfactants are resistant to strong alkalis and electrolytes, have good thickening ability and good compatibility with oil stains, and significantly improve the mildness of the formulation, non-toxic, non-irritating and biodegradable.

[0014] The embodiment of the present invention further provides a metal parts degreasing treatment method, comprising the following steps: preparing the degreasing agent as described above; dissolving the degreaser in water to prepare a degreaser solution, and degreaser The mass percentage of the degreaser in the solution is 2-15%, the free alkalinity of the degreaser solution is controlled to be 2-60 pt; the metal piece is immersed in the degreaser solution, after a predetermined daytime treatment, and washed Metal parts, dry.

[0015] Specifically, the degreaser solution preferably has a free alkalinity of 2-40 pt, and the predetermined daytime is 5-30 minutes. The temperature of the degreasing treatment with the degreaser solution is preferably 20-60 degrees.

[0016] The free alkalinity is measured by: pipetting 10 mL of the test solution into a 250 mL Erlenmeyer flask with a pipette, and adding 2-3 drops of the phenolphthalein indicator solution. Using 0.1 single-volume sulfuric acid standard droplets until the solution turns from red to colorless, that is, the end point, the number of milliliters of sulfuric acid standard solution is the free alkalinity of the bath. Further, in the degreasing treatment of the metal parts with the degreaser solution, the degreaser solution may also be subjected to ultrasonic vibration treatment. For example, the metal parts may be degreased under ultrasonic vibration in an ultrasonic cleaning machine. deal with.

[0017] Embodiments of the present invention also provide a metal member that is treated by the metal member degreasing treatment method as described above to form a clean, shiny surface of the metal member. After the above degreaser treatment, the surface of the metal parts is clean and bright, and the whole degreasing treatment method is simple and environmentally friendly, has no corrosion to the workpiece, is convenient to operate, and has low use cost. The metal member may be a copper member, an iron member, an aluminum member, a zinc member, a magnesium member, an alloy thereof, or the like. When the metal member is an iron member and an alloy thereof, the alkalinium is preferably sodium hydroxide, and when the metal member is a non-ferrous metal, the alkali metal is preferably soda ash, and the component is preferably 1 to 50 parts, and the following metal parts are made of iron. example.

Embodiment 1

[0019] The ingredients are mixed in the following parts by weight (total weight parts are 1000): 50 parts sodium hydroxide, 25 parts borax

, 10 alkyl polyglycoside, 25 parts phosphate, 5 parts nonylphenol ethoxylate, 2 parts defoamer, 1 part corrosion inhibitor

The balance is water, stirred, evenly mixed, and formulated into a degreaser.

[0020] treatment method: according to the above formula to prepare the degreaser; the degreaser dissolved in water to prepare a degreaser solution, the degreaser solution in the degreaser mass percentage of 10%; will be oily The metal member is immersed in the degreaser solution, and after 5 minutes of treatment, the metal member is washed with water and dried.

[0021] After the above-mentioned degreaser solution treatment, the surface of the metal workpiece is observed, and the entire metal member surface is clean, the color is uniform, and there is no pitting corrosion and oil stain. Observed by the water film method, the water film is uniform and the degreasing effect is better.

Embodiment 2

[0023] The ingredients are mixed in the following parts by weight (total parts by weight): 100 parts of sodium hydroxide, 30 parts of borax, 40 alkyl polyglycosides, 30 parts of phosphate, 6 parts of nonylphenol ethoxylate, 4 parts of defoamer, 2 parts of corrosion inhibition 1J, the balance is water, stirring, mixing evenly, formulated as degreaser.

[0024] treatment method: according to the above formula to prepare the degreaser; the degreaser dissolved in water to prepare a degreaser solution, the degreaser solution in the degreaser content of 10% by mass; will be oily The metal member is immersed in the degreaser solution, and after 10 minutes of treatment, the metal member is washed with water and dried. [0025] After the above-mentioned degreaser solution treatment, the surface of the metal workpiece is observed, and the surface of the entire metal part is clean, the color is uniform, and there is no pitting corrosion and oil stain. Observed by the water film method, the water film is uniform and the degreasing effect is better.

Embodiment 3

[0027] The components are mixed according to the following parts by weight (total parts by weight): 150 parts of sodium hydroxide, 40 parts of borax, 80 alkyl polyglycosides, 40 parts of phosphate, 7 parts of nonylphenol ethoxylate, 6 parts of defoamer, 3 parts of corrosion inhibition 1J, evenly mixed, formulated as degreaser.

[0028] Treatment method: after formulating the degreaser according to the above formula; dissolving the degreaser in water to prepare a degreaser solution, the degreaser solution in the degreaser is 7% by mass; The metal member is immersed in the degreaser solution, and after 5 minutes of treatment, the metal member is washed with water and dried.

[0029] After the above degreaser solution is treated, the surface of the metal workpiece is observed, and the entire surface of the metal member is clean, the color is uniform, and there is no pitting corrosion and oil stain. Observed by the water film method, the water film is uniform and the degreasing effect is better.

Embodiment 4

[0031] The ingredients are mixed in the following parts by weight (total parts by weight): 200 parts of sodium hydroxide, 50 parts of borax, 100 alkyl polyglycosides, 50 parts of phosphate, 10 parts of nonylphenol ethoxylate, 10 parts of defoamer, 5 parts of corrosion inhibitor, evenly mixed, formulated to remove oil.

[0032] Treatment method: after the degreaser is prepared according to the above formula; the degreaser is dissolved in water to prepare a degreaser solution, the degreaser solution in the degreaser is 5% by mass; The metal member is immersed in the degreaser solution, and after 15 minutes of treatment, the metal member is washed with water and dried.

[0033] After the above degreaser solution is treated, the surface of the metal workpiece is observed, and the surface of the entire metal part is clean, the color is uniform, and there is no pitting corrosion and oil stain. Observed by the water film method, the water film is uniform and the degreasing effect is better.

[0034] It should be noted that the present invention is not limited to the above embodiments, and other changes may be made by those skilled in the art according to the creative spirit of the present invention, and the changes according to the creative spirit of the present invention should be It is intended to be included within the scope of the invention as claimed.

Claims

Claim

[Claim 1] A degreaser comprising 1000 parts by weight of a base, 50-200 parts of a base, 25-50 parts of borax, 10-100 alkyl polyglycosides, and 25 parts by weight -50 parts of phosphate, 5-10 parts of nonylphenol ethoxylate, 2-10 parts of defoamer, 1-5 parts of corrosion inhibitor, balance of water

[Claim 2] A degreaser comprising 1000 parts by weight of a base, 50-50 parts of a base, 25-50 parts of borax, 10-100 alkyl polyglycosides, and 25 parts by weight. -50 parts of phosphate, 5-10 parts of nonylphenol ethoxylate, 2-10 parts of defoamer, 1-5 parts of corrosion inhibitor, balance of water

[Claim 3] The degreaser according to claim 1, wherein the borax has a weight fraction of 30-

40 copies.

[Claim 4] The degreaser according to claim 1, wherein the alkylpolyglycoside has a weight fraction of 30 to 80 parts.

[Claim 5] The degreaser according to claim 1, wherein the phosphate is sodium tripolyphosphate

, trisodium phosphate, sodium pyrophosphate or disodium hydrogen phosphate, 30-40 parts by weight.

[Claim 6] The degreaser according to claim 1, wherein the nonylphenol ethoxylate is 6-8 parts by weight.

[Claim 7] The degreaser according to claim 1, wherein the antifoaming agent is oleic acid, tributyl phosphate or silicone, and the antifoaming agent is 4-8 parts by weight. And the corrosion inhibitor is benzoic acid or benzotriazole, and the corrosion inhibitor is 2-4 parts by weight.

[Claim 8] A method for degreasing a metal member, comprising the steps of: formulating the degreaser according to any one of claims 1 to 7; dissolving the degreaser in water to prepare a degreaser solution, The mass percentage of the degreaser in the degreaser solution is 2-15%, the free alkalinity of the degreaser solution is controlled to be 2-60 pt; the metal piece is immersed in the degreaser solution, or sprayed Or brush the degreaser on the metal parts, after the predetermined daytime treatment, wash the metal parts.

[Claim 9] The method for removing oil from a metal member according to claim 7, wherein the de-oiling treatment of the metal member with the degreaser solution can also perform ultrasonic vibration on the degreaser solution. deal with. [Claim 10] A metal member, wherein the surface of the metal member is treated by the metal member degreasing treatment method according to claim 8.