CN103014709B - Copper precision part burr removal method - Google Patents
Copper precision part burr removal method Download PDFInfo
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- CN103014709B CN103014709B CN201310015690.3A CN201310015690A CN103014709B CN 103014709 B CN103014709 B CN 103014709B CN 201310015690 A CN201310015690 A CN 201310015690A CN 103014709 B CN103014709 B CN 103014709B
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Abstract
The invention provides a copper precision part burr removal method, which can perform chemical plating on the copper precision part to enhance the surface brightness and oxidation resistance of the precision part. By adopting ultrasonic-chemical corrosion burr removal/chemical plating integrated solution, strong high-pressure impact waves generated by ultrasonic cavitation effect can be utilized to remove micro-burr and floating burr in the product, thereby enhancing the surface smoothness; and the invention is not critical of the shape of the part, and the treatment can lower the internal stress of the part. The chemical-corrosion burr removal technique can overcome the defect that the ultrasonic method can not remove adhesive burr; the chemical oxidation method can be adopted to remove the adhesive burr; and the workpiece is immersed in a proper corrosion inhibition solution and corrosive solution, thereby selectively achieving the effect of burr removal on the basis of the vertical reaction principle by utilizing the difference between the substrate structure and burr.
Description
Technical field
The present invention relates to a kind of copper material precision parts burr removal method, relate in particular to and combine use ultrasonic wave and chemical corrosion method, remove copper material precision parts burr, belong to machining technique field.
Technical background
In the precision optical machinery course of processing, particularly arris place can derive unnecessary burr from the teeth outwards.The existence of burr will affect the precision of precision element, can detect operation to product simultaneously and cause larger positive and negative deviation, and processing work is often mistaken for unacceptable product.Also can affect general assembly quality with jagged precise part.In precision sizing field, the size of precise product is generally very little, adopts traditional technology to remove the not only low-quality poor efficiency of burr of accurate small component, and production cost also increases thereupon.Copper material is one of a large amount of materials that use in precision parts processing, and efficiently removing copper material precision parts burr is the problem of industry often running in precision sizing.
Summary of the invention
The object of this invention is to provide efficient copper material precision parts burr removal method, can carry out plated film to copper material precision parts again, improve surface brightness and the oxidation-resistance of precision parts simultaneously.For above-mentioned purpose, the solution that technical scheme of the present invention adopts ultrasonic wave-chemical corrosion burr removal and plated film to be integrated, the powerful high-pressure shocking wave that utilizes ultrasonic cavitation effect to produce can be removed small burr and the floating burr in product, improve surface smoothness, and not fastidious to the shape of part, after processing, also reduce part internal stress.
But, ultrasonic wave can not be removed the larger burr and the adhesion burr that are connected with matrix, chemical corrosion method fin cutting technique can make up ultrasonic method can not remove the deficiency of adhesion burr, adopt chemical oxidation method can remove adhesion burr, by the suitable corrosive fluid of option and installment, workpiece is immersed in corrosive fluid, utilize the otherness of matrix structure and burr, by the principle of vertical reaction, selectively reach the copper material precision parts burr removal method of the effect of fin cutting.
Technical scheme of the present invention is, a kind of copper material precision parts burr removal method, and the method is used ultrasonic wave and chemical corrosion method by combining, and removes copper material precision parts burr.
Its concrete technology comprises the following steps: after copper material precision parts is cleaned, put into ultrasonic wave powerful ultrasonic 5 minutes, then copper material precision parts is put into inhibiting solution and soak 10-15 minute, add thermal control temperature 40-50 degree Celsius.Inhibiting solution formula is as follows.
Inhibiting solution formula (mass percent): defoamer 0.3%, OP-7 emulsifying agent 0.3-0.5%, benzotriazole 0.5%, mercaptobenzothiazole sodium salt 1%, 2,5-dimercaptothiodiazole disodium (30% aqueous solution) 10%, all the other are water.
To soak copper material precision parts and take out from inhibiting solution, and directly put into and be preheating to 45 degrees Celsius of corrosive fluids, ultrasonic 1-5 minute, takes out cleaning, drying.Corrosion liquid formula has two, is respectively corrosion liquid formula 1 and corrosion liquid formula 2, corrosion liquid formula (mass percent) 1: iron(ic) chloride 30-40%, hydrochloric acid 5-10%, defoamer 0.3%, OP-7 emulsifying agent 0.3-0.5%, benzotriazole 0.5%, mercaptobenzothiazole sodium salt 1%, all the other are water.
Further, described corrosion liquid formula (mass percent) 2: ammonium chloride 6-8%, sodium chlorate 0.7-0.9%, concentrated hydrochloric acid 25%, defoamer 0.3%, OP-4 emulsifying agent 0.3-0.5%, benzotriazole 0.5%, 2, all the other are water for 5-dimercaptothiodiazole disodium (30% aqueous solution) 3%.
Conventionally, larger workpiece and larger burr can be selected corrosion liquid formula 1, and less workpiece and less burr can be selected formula 2.
The invention has the beneficial effects as follows: the chemical burr removal traditional technology that compares, this technique has obtained very large improvement on the treatment time.Adopt this technique to carry out deburring processing, generally only need several minutes, the shortest product only needs tens seconds, no matter the product processing is at the aspect such as precision or color and dimensions, have high consistence, aspect size control, its precision can reach a micron requirement especially especially.When chemical corrosion fin cutting; inevitably also can produce corrosion to matrix; copper material part base solid is caused to corrosion for avoiding chemical corrosion fin cutting when; before carrying out chemical deburring; workpiece is soaked in advance in inhibiting solution; form the protective membrane of one deck even compact on workpiece substrate surface, isolated matrix contacts with corrosive fluid.In chemical corrosion liquid, also add chelating rust-preventive agent and brightening agent simultaneously, form layer protecting film at precision parts matrix surface, corrosion when both having prevented chemical oxidation deburring, has improved again surface smoothness and the antioxidant property of workpiece.
Embodiment
below in conjunction with specific embodiment, technical scheme of the present invention is described further.
Embodiment 1
The oil removing of copper material precision parts is carried out workpiece rinsing after cleaning, and workpiece is put into ultrasonic wave powerful ultrasonic 5 minutes, and then the copper material precision parts of large part is put into inhibiting solution and soak 15 minutes, 45 degrees Celsius of heated for controlling temperatures, inhibiting solution formula is as follows:
Inhibiting solution formula (mass percent): defoamer 0.3%, OP-7 emulsifying agent 0.3%, benzotriazole 0.5%, mercaptobenzothiazole sodium salt benzothiazole sodium salt 1%, 2,5-dimercaptothiodiazole disodium (30% aqueous solution) 10%, all the other are water.
After workpiece is taken out, directly put into and be preheated to 45 degrees Celsius of corrosive fluids, ultrasonic erosion 1 minute.Corrosion liquid formula is as follows:
Corrosion liquid formula 1(mass percent): iron(ic) chloride 35%, hydrochloric acid 5%, defoamer 0.3%, OP-7 emulsifying agent 0.3%, benzotriazole 0.5%, mercaptobenzothiazole sodium salt 1%, all the other are water.
Embodiment 2
The oil removing of copper material precision parts is carried out workpiece rinsing after cleaning, and workpiece is put into ultrasonic wave powerful ultrasonic 10 minutes, and then copper material precision parts is put into inhibiting solution and soaked 15 minutes, 50 degrees Celsius of heating and thermal insulation control temperature, inhibiting solution formula is as follows.
Inhibiting solution formula (mass percent): defoamer 0.3%, OP-7 emulsifying agent, 0.5%, benzotriazole 0.5%, mercaptobenzothiazole sodium salt 1%, 2,5-dimercaptothiodiazole disodium (30% aqueous solution) 10%, all the other are water.
After being taken out, workpiece directly puts into 40 degrees Celsius of corrosive fluids of preheating, ultrasonic erosion 2.5 minutes.Corrosion liquid formula is as follows.
Corrosion liquid formula (mass percent): ammonium chloride 8%, sodium chlorate 0.8%, concentrated hydrochloric acid 25%, defoamer 0.3%, OP-4 emulsifying agent 0.3-0.5%, benzotriazole 0.5%, 2,5-dimercaptothiodiazole disodium (30% aqueous solution) 3%, all the other are water.
Embodiment 3
The oil removing of copper material precision parts is carried out workpiece rinsing after cleaning, and workpiece is put into ultrasonic wave powerful ultrasonic 5 minutes, and then copper material precision parts is put into inhibiting solution and soaked 12.5 minutes, 45 degrees Celsius of heated for controlling temperatures, inhibiting solution formula is as follows:
Inhibiting solution formula (mass percent): defoamer 0.3%, OP-7 emulsifying agent, 0.3%, benzotriazole 0.5%, mercaptobenzothiazole sodium salt 1%, 2,5-dimercaptothiodiazole disodium (30% aqueous solution) 10%, all the other are water.
After workpiece is taken out, directly put into and be preheated to 45 degrees Celsius of corrosive fluids, ultrasonic erosion 4 minutes.Corrosion liquid formula is as follows:
Corrosion liquid formula 1(mass percent): iron(ic) chloride 35%, hydrochloric acid 5%, defoamer 0.3%, OP-7 emulsifying agent 0.3%, benzotriazole 0.5%, mercaptobenzothiazole sodium salt 1%, all the other are water.
Embodiment 4
The oil removing of copper material precision parts is carried out workpiece rinsing after cleaning, and workpiece is put into ultrasonic wave powerful ultrasonic 10 minutes, and then copper material precision parts is put into inhibiting solution and soaked 14 minutes, 50 degrees Celsius of heating and thermal insulation control temperature, inhibiting solution formula is as follows.
Inhibiting solution formula (mass percent): defoamer 0.3%, OP-7 emulsifying agent, 0.5%, benzotriazole 0.5%, mercaptobenzothiazole sodium salt 1%, 2,5-dimercaptothiodiazole disodium (30% aqueous solution) 10%, all the other are water.
After being taken out, workpiece directly puts into 40 degrees Celsius of corrosive fluids of preheating, ultrasonic erosion 2 minutes.Corrosion liquid formula is as follows.
Corrosion liquid formula (mass percent): ammonium chloride 8%, sodium chlorate 0.8%, concentrated hydrochloric acid 25%, defoamer 0.3%, OP-4 emulsifying agent 0.5%, benzotriazole 0.5%, 2,5-dimercaptothiodiazole disodium (30% aqueous solution) 3%, all the other are water.
Adopt advocated claim scope of the present invention to be not limited to this, all personages who is familiar with this field skill, according to the disclosed technology contents of the present invention, within all should falling into protection scope of the present invention.
Claims (2)
1. a copper material precision parts burr removal method, is characterized in that combining use ultrasonic wave and chemical corrosion method, removes copper material precision parts burr, and its concrete technology flow process of the method is:
First: copper material precision parts is carried out to oil removing cleaning, drop in ultrasonic wave and carry out ultrasonic wave fin cutting, workpiece is immersed in inhibiting solution, be warming up to 40-50 degree Celsius, insulation 10-15 minute, takes out copper material precision parts, for subsequent use; Wherein, the mass percent of the each component of described inhibiting solution: defoamer 0.2%-0.8%, OP-7 emulsifying agent 0.1%-0.8%, benzotriazole 0.2-0.6%, mercaptobenzothiazole sodium salt 0.5%-3%, 2,30% aqueous solution 5%-20% of 5-dimercaptothiodiazole disodium, all the other are water;
Secondly, copper material precision parts is dropped in the chemical corrosion liquid that is preheated to 40-50 degree Celsius, open ultrasonic wave fin cutting 1-5 minute, workpiece is taken out, ultrasonic cleaning post-drying, wherein, the mass percent of the each component of described chemical corrosion liquid is: iron(ic) chloride 30-40%, hydrochloric acid 5-10%, defoamer 0.1%-0.5%, OP-7 emulsifying agent 0.3-0.5%, benzotriazole 0.3-1.5%, mercaptobenzothiazole sodium salt 1%-5%, all the other are water.
2. a copper material precision parts burr removal method, it is characterized in that, first: copper material precision parts is carried out to oil removing cleaning, drop in ultrasonic wave and carry out ultrasonic wave fin cutting, workpiece is immersed in inhibiting solution, be warming up to 40-50 degree Celsius, insulation 10-15 minute, copper material precision parts is taken out, for subsequent use; Wherein, the mass percent of the each component of described inhibiting solution: defoamer 0.2%-0.8%, OP-7 emulsifying agent 0.1%-0.8%, benzotriazole 0.2-0.6%, mercaptobenzothiazole sodium salt 0.5%-3%, 2,30% aqueous solution 5%-20% of 5-dimercaptothiodiazole disodium, all the other are water;
Secondly, copper material precision parts is dropped in the chemical corrosion liquid that is preheated to 40-50 degree Celsius, open ultrasonic wave fin cutting 1-5 minute, workpiece is taken out, ultrasonic cleaning post-drying, wherein, the mass percent of the each component of described chemical corrosion liquid is: ammonium chloride 6-8%, sodium chlorate 0.7-0.9%, concentrated hydrochloric acid 25%-30%, defoamer 0.2%-1%, OP-4 emulsifying agent 0.3%-0.5%, benzotriazole 0.3%-1.5%, 2,30% aqueous solution 3%-5% of 5-dimercaptothiodiazole disodium, all the other are water.
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| CN104525959B (en) * | 2014-12-25 | 2016-09-07 | 安徽旭晶粉体新材料科技有限公司 | A kind of water fog method produces the composite antioxidant of copper powder |
| CN104773794A (en) * | 2015-04-30 | 2015-07-15 | 湖南富莱明节能环保科技有限公司 | Composite additive for electrolysis |
| CN105780003A (en) * | 2016-01-13 | 2016-07-20 | 哈尔滨飞机工业集团有限责任公司 | Chemical reagent for deburring of aluminum parts |
| CN111945139B (en) * | 2020-07-27 | 2022-07-12 | 江苏富乐华半导体科技股份有限公司 | Nickel plating method for copper-clad ceramic substrate |
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| SU446380A1 (en) * | 1972-07-03 | 1974-10-15 | Предприятие П/Я Г-4086 | Ultrasonic deburring method |
| CN101294298A (en) * | 2008-01-17 | 2008-10-29 | 大连理工大学 | Electrochemical polishing method for high purity aluminum under ultrasonic agitation |
| CN102500575A (en) * | 2011-11-08 | 2012-06-20 | 佛山市中研非晶科技股份有限公司 | Loss-reducing method for amorphous alloy C type iron core section |
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Address after: 311321 Changhua Industrial Park, Hangzhou, Zhejiang, Ling'an Co-patentee after: Zhejiang University Seenpin Smart Technology Business Division Patentee after: Hangzhou new sword robot technology Limited by Share Ltd Address before: 311321 Changhua Industrial Park, Hangzhou, Zhejiang, Ling'an Co-patentee before: Zhejiang University Seenpin Smart Technology Business Division Patentee before: Seenpin Precision Products (Zhejiang) Co., Ltd. |