CN107267966A - A kind of continuous chrome-plated process of pin cloth - Google Patents

A kind of continuous chrome-plated process of pin cloth Download PDF

Info

Publication number
CN107267966A
CN107267966A CN201710514014.9A CN201710514014A CN107267966A CN 107267966 A CN107267966 A CN 107267966A CN 201710514014 A CN201710514014 A CN 201710514014A CN 107267966 A CN107267966 A CN 107267966A
Authority
CN
China
Prior art keywords
pin cloth
plating
chrome
carried out
pin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710514014.9A
Other languages
Chinese (zh)
Inventor
张骏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HAICHENG (WUHU) TECHNOLOGY CO LTD
Original Assignee
HAICHENG (WUHU) TECHNOLOGY CO LTD
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HAICHENG (WUHU) TECHNOLOGY CO LTD filed Critical HAICHENG (WUHU) TECHNOLOGY CO LTD
Priority to CN201710514014.9A priority Critical patent/CN107267966A/en
Publication of CN107267966A publication Critical patent/CN107267966A/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/52Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating using reducing agents for coating with metallic material not provided for in a single one of groups C23C18/32 - C23C18/50
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/18Pretreatment of the material to be coated
    • C23C18/1803Pretreatment of the material to be coated of metallic material surfaces or of a non-specific material surfaces
    • C23C18/1824Pretreatment of the material to be coated of metallic material surfaces or of a non-specific material surfaces by chemical pretreatment
    • C23C18/1837Multistep pretreatment
    • C23C18/1844Multistep pretreatment with use of organic or inorganic compounds other than metals, first
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/18Pretreatment of the material to be coated
    • C23C18/1803Pretreatment of the material to be coated of metallic material surfaces or of a non-specific material surfaces
    • C23C18/1848Pretreatment of the material to be coated of metallic material surfaces or of a non-specific material surfaces by electrochemical pretreatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrochemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Electroplating Methods And Accessories (AREA)

Abstract

The invention discloses a kind of continuous chrome-plated process of pin cloth, technology groove is sequentially passed through using system drive pin cloth is unreeled, using chemical plating, chromium plating is carried out to pin cloth surface, the processing step includes, 1) surface treatment, oil removal treatment is carried out to pin cloth surface;2) polish, chemical polishing is carried out to pin cloth surface;3) activate, use volume ratio to carry out activation process, time to pin cloth surface for 30 40% hydrochloric acid:1‑5min;4) chromium plating, in pin cloth chrome-faced, using chemical plating to pin cloth plating hard chromium on surface;5) dry, the continuous plating of pin cloth is realized by supporting unwinding equipment, the chromium plating length of pin cloth can reach endless in theory.

Description

A kind of continuous chrome-plated process of pin cloth
Technical field
The present invention relates to weaving part overlay coating field, more particularly to a kind of continuous chrome-plated process of pin cloth.
Background technology
The chrome-plated process of pin cloth, can only realize the pin cloth chrome-faced of regular length, and length is less than 3 meters, it is impossible to realize pin The overlength chromium plating of cloth;It is poor using mechanical polishing, surface finish in surface preparation, or electrobrightening, electric current mistake Greatly, pin cloth structure is destroyed, causes the crown of pin cloth to burn;Chromium plating uses electroplating technique, because current density is uneven, causes plating Layer is in uneven thickness, influences quality of coating.
Therefore the chrome-plated process of pin cloth is caused, quality is low, efficiency is low, production cost is high.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of continuous chrome-plated process of pin cloth, pass through supporting unwinding equipment To realize the continuous plating of pin cloth, the chromium plating length of pin cloth can reach endless in theory, caused in the prior art to solve Above-mentioned multinomial defect.
To achieve the above object, the present invention provides following technical scheme:A kind of continuous chrome-plated process of pin cloth, using unreeling System drive pin cloth sequentially passes through technology groove, using chemical plating, chromium plating is carried out to pin cloth surface, the processing step includes,
1) it is surface-treated, oil removal treatment is carried out to pin cloth surface;
2) polish, chemical polishing is carried out to pin cloth surface;
3) activate, use volume ratio to carry out activation process, time to pin cloth surface for 30-40% hydrochloric acid:1-5min;
4) chromium plating, in pin cloth chrome-faced, using chemical plating to pin cloth plating hard chromium on surface;
5) dry.
It is preferred that, in the surface treatment step, including electrochemical deoiling and electrochemical degreasing.
It is preferred that, the electrochemical deoiling uses alkaline degreaser, and oil removing agent concentration is 50-70g/L, and temperature is 50-70 DEG C, Time is 5-30min.
It is preferred that, the electrochemical degreasing uses alkaline degreaser, and degreaser negative electrode concentration is 30-60g/L, and degreaser is cloudy Pole concentration is 50-80g/L, and temperature is 50-70 DEG C, and the time is 15-180sec, and current density is 1-10ASD, and electrode is using stainless Steel or graphite.
It is preferred that, in the polishing step, the mode for using impregnated ground agent carries out electrochemical deoiling, and temperature control exists 17 DEG C, pH value is 2.0-3.5, time 1-3min, stings erosion speed 2-7 μm/minute.
It is preferred that, carry out adverse current washing between the surface treatment and polishing;Adverse current washing is carried out between activation and chromium plating; Adverse current washing is carried out between chromium plating and drying.
It is preferred that, adverse current washing is carried out using pure water between the chromium plating and drying.
Beneficial effect using above technical scheme is:The continuous chrome-plated process of pin cloth of the present invention, using unwinding equipment and right The special chrome plating equipment for answering the technology groove of each processing step to constitute carries out chromium plating, realizes the continuous plating of pin cloth, in theory pin cloth Chromium plating length can reach endless, substantially increase the efficiency of pin cloth chromium plating, realize automation mechanized operation, reduction is produced into This.
Chemical polishing, the quality of chromium plating after raising, while using chemical plating come hard chrome plating are used before chromium plating, it is ensured that Coating on pin cloth is uniform.
Embodiment
The following detailed description of the preferred embodiment of the present invention.
Embodiment 1
A kind of continuous chrome-plated process of pin cloth, technology groove is sequentially passed through using system drive pin cloth is unreeled, right using chemical plating Pin cloth surface carries out chromium plating, and the processing step includes,
1) it is surface-treated, oil removal treatment is carried out to pin cloth surface;Including electrochemical deoiling and electrochemical degreasing.
Electrochemical deoiling uses alkaline degreaser, and oil removing agent concentration is 50g/L, and temperature is 70 DEG C, and the time is 30min.
Electrochemical degreasing uses alkaline degreaser, and degreaser negative electrode concentration is 30g/L, and degreaser negative electrode concentration is 50g/L, Temperature is 70 DEG C, and the time is 180sec, and current density is 10ASD, and electrode uses stainless steel or graphite.
2) polish, chemical polishing is carried out to pin cloth surface;In polishing step, the mode for using impregnated ground agent is carried out Electrochemical deoiling, temperature control is at 17 DEG C, and pH value is 2.0, time 3min, stings erosion μm/minute of speed 2.
3) activate, use volume ratio to carry out activation process, time to pin cloth surface for 30% hydrochloric acid:5min;
4) chromium plating, in pin cloth chrome-faced, using chemical plating to pin cloth plating hard chromium on surface;
5) dry.
Embodiment 2
A kind of continuous chrome-plated process of pin cloth, technology groove is sequentially passed through using system drive pin cloth is unreeled, right using chemical plating Pin cloth surface carries out chromium plating, and the processing step includes,
1) it is surface-treated, oil removal treatment is carried out to pin cloth surface;Including electrochemical deoiling and electrochemical degreasing.
Electrochemical deoiling uses alkaline degreaser, and oil removing agent concentration is 70g/L, and temperature is 50 DEG C, and the time is 5min.
Electrochemical degreasing uses alkaline degreaser, and degreaser negative electrode concentration is 60g/L, and degreaser negative electrode concentration is 80g/L, Temperature is 50 DEG C, and the time is 15sec, and current density is 1ASD, and electrode uses stainless steel or graphite.
2) polish, chemical polishing is carried out to pin cloth surface;In polishing step, the mode for using impregnated ground agent is carried out Electrochemical deoiling, temperature control is at 17 DEG C, and pH value is 3.5, time 1min, stings erosion μm/minute of speed 7.
3) activate, use volume ratio to carry out activation process, time to pin cloth surface for 40% hydrochloric acid:1min;
4) chromium plating, in pin cloth chrome-faced, using chemical plating to pin cloth plating hard chromium on surface;
5) dry.
Embodiment 3
A kind of continuous chrome-plated process of pin cloth, it is characterised in that sequentially pass through technology groove using system drive pin cloth is unreeled, adopt With chemical plating, chromium plating is carried out to pin cloth surface, the processing step includes,
1) it is surface-treated, oil removal treatment is carried out to pin cloth surface;Including electrochemical deoiling and electrochemical degreasing.
Electrochemical deoiling uses alkaline degreaser, and oil removing agent concentration is 60g/L, and temperature is 60 DEG C, and the time is 18min.
Electrochemical degreasing uses alkaline degreaser, and degreaser negative electrode concentration is 45g/L, and degreaser negative electrode concentration is 65g/L, Temperature is 60 DEG C, and the time is 90sec, and current density is 5ASD, and electrode uses stainless steel or graphite.
2) polish, chemical polishing is carried out to pin cloth surface;In polishing step, the mode for using impregnated ground agent is carried out Electrochemical deoiling, temperature control is at 17 DEG C, and pH value is 2.8, time 2min, stings erosion μm/minute of speed 4.
3) activate, use volume ratio to carry out activation process, time to pin cloth surface for 35% hydrochloric acid:3min;
4) chromium plating, in pin cloth chrome-faced, using chemical plating to pin cloth plating hard chromium on surface;
5) dry.
Adverse current washing is carried out between surface treatment and polishing;Adverse current washing is carried out between activation and chromium plating;Chromium plating and drying Between carry out adverse current washing, wherein, chromium plating and drying between using pure water carry out adverse current washing.
Electrochemical deoiling agent uses a kind of multi-functional, the not non-foam powder degreaser of phosphate-containing and silicate, can It is effective to remove stainless steel, zinc, nickel, a variety of lubricants and grease of copper and its alloy surface.
In adding procedure, the determination of the addition to adding degreaser, point following several steps,
1) 10ml tank liquor is drawn, is placed in beaker, 100mlDI water is added;
2) 4-6 drop phenolphthalein indicators are added;
3) titrated with 1.0N hydrochloric acid standard solution by red to colourless as terminal;
4) addition of degreaser is the addition of 7 times of hydrochloric acid standard solution.
Electrolytic degreasing agent one kind is multi-functional, and the non-foam powder degreaser of phosphate-containing and silicate, can not go effectively Except stainless steel, zinc, nickel, a variety of lubricants and grease of copper and its alloy surface.
In adding procedure, the determination of the addition to adding electrolytic degreasing agent, point following several steps,
1) 10ml tank liquor is drawn, is placed in beaker, 100mlDI water is added;
2) 4-6 drop phenolphthalein indicators are added;
3) titrated with 1.0N hydrochloric acid standard solution by red to colourless as terminal;
4) addition of degreaser is the addition of 8.28 times of hydrochloric acid standard solution.
The grinding preparation of reagents mode has two ways,
A kind of water for first injecting 1/3 volume cell body, addition 8-12% (v/v) grinding reagent;
Another is the water for first injecting 1/3 volume cell body, addition 12-13.5% (v/v) grinding reagent and 25% (v/ V) hydrogen peroxide.
-- -- washing -- polishing -- washing, in polishing using 30-40% (v/v) hydrochloric acid activation that specific step is washing It is preceding thoroughly to clean and remove surface oxide layer by activation.
The continuous chrome-plated process of pin cloth of the present invention, using unwinding equipment and each processing step of correspondence technology groove composition it is special Chromium plating is carried out with chrome plating equipment, the continuous plating of pin cloth is realized, the chromium plating length of pin cloth can reach endless in theory, carry significantly The high efficiency of pin cloth chromium plating, realizes automation mechanized operation, reduces production cost.
Chemical polishing, the quality of chromium plating after raising, while using chemical plating come hard chrome plating are used before chromium plating, it is ensured that Coating on pin cloth is uniform.
Existing similar-type products on the market, black pin cloth (being by processing, only surface polishing) unit price 200/m members; 400 yuan/m of white pin cloth (passing through simple process) unit price;High standard pin cloth unit price 800-900 members/m, are made using the application technique Pin cloth, high standard pin cloth is equal in quality, and theoretic processing cost is 200 yuan/endless.
The cost price of product is greatly reduced, great economic benefit is produced.
Above-described is only the preferred embodiment of the present invention, it is noted that for one of ordinary skill in the art For, without departing from the concept of the premise of the invention, various modifications and improvements can be made, these belong to the present invention Protection domain.

Claims (7)

1. a kind of continuous chrome-plated process of pin cloth, it is characterised in that sequentially pass through technology groove using system drive pin cloth is unreeled, is used Chemical plating, chromium plating is carried out to pin cloth surface, and the processing step includes,
1) it is surface-treated, oil removal treatment is carried out to pin cloth surface;
2) polish, chemical polishing is carried out to pin cloth surface;
3) activate, use volume ratio to carry out activation process, time to pin cloth surface for 30-40% hydrochloric acid:1-5min;
4) chromium plating, in pin cloth chrome-faced, using chemical plating to pin cloth plating hard chromium on surface;
5) dry.
2. the continuous chrome-plated process of pin cloth according to claim 1, it is characterised in that in the surface treatment step, including Electrochemical deoiling and electrochemical degreasing.
3. the continuous chrome-plated process of pin cloth according to claim 2, it is characterised in that the electrochemical deoiling uses alkaline degreasing Agent, oil removing agent concentration is 50-70g/L, and temperature is 50-70 DEG C, and the time is 5-30min.
4. the continuous chrome-plated process of pin cloth according to claim 2, it is characterised in that the electrochemical degreasing is removed using alkalescence Finish, degreaser negative electrode concentration is 30-60g/L, and degreaser negative electrode concentration is 50-80g/L, and temperature is 50-70 DEG C, and the time is 15-180sec, current density is 1-10ASD, and electrode uses stainless steel or graphite.
5. the continuous chrome-plated process of pin cloth according to claim 1, it is characterised in that in the polishing step, use The mode of impregnated ground agent carries out electrochemical deoiling, and temperature control is at 17 DEG C, and pH value is 2.0-3.5, time 1-3min, stings erosion speed 2-7 μm/minute.
6. the continuous chrome-plated process of pin cloth according to claim 1, it is characterised in that enter between the surface treatment and polishing Row adverse current is washed;Adverse current washing is carried out between activation and chromium plating;Adverse current washing is carried out between chromium plating and drying.
7. the continuous chrome-plated process of pin cloth according to claim 6, it is characterised in that using pure between the chromium plating and drying Water carries out adverse current washing.
CN201710514014.9A 2017-06-29 2017-06-29 A kind of continuous chrome-plated process of pin cloth Pending CN107267966A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710514014.9A CN107267966A (en) 2017-06-29 2017-06-29 A kind of continuous chrome-plated process of pin cloth

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710514014.9A CN107267966A (en) 2017-06-29 2017-06-29 A kind of continuous chrome-plated process of pin cloth

Publications (1)

Publication Number Publication Date
CN107267966A true CN107267966A (en) 2017-10-20

Family

ID=60069884

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710514014.9A Pending CN107267966A (en) 2017-06-29 2017-06-29 A kind of continuous chrome-plated process of pin cloth

Country Status (1)

Country Link
CN (1) CN107267966A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111364073A (en) * 2020-02-25 2020-07-03 光山白鲨针布有限公司 Preparation process and product of anticorrosive wear-resistant chromium-based card clothing
CN115821577A (en) * 2022-09-21 2023-03-21 光山白鲨针布有限公司 Surface treatment method of elastic card clothing and anti-corrosion wear-resistant coating elastic card clothing

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010015323A1 (en) * 2000-02-18 2001-08-23 Graf + Cie Ag Method and apparatus for manufacturing a wire
CN103215697A (en) * 2013-03-28 2013-07-24 张寰宇 Novel fillet clothing for carding machine
CN103266340A (en) * 2013-05-07 2013-08-28 常州市洋士纺织机械科技有限公司 Ni-P-nano-diamond powder composite wear resistance plating layer plating liquid and applications thereof
CN105177640A (en) * 2015-08-04 2015-12-23 重庆立道表面技术有限公司 Efficient high-performance and high-hardness chromium plating process

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010015323A1 (en) * 2000-02-18 2001-08-23 Graf + Cie Ag Method and apparatus for manufacturing a wire
CN103215697A (en) * 2013-03-28 2013-07-24 张寰宇 Novel fillet clothing for carding machine
CN103266340A (en) * 2013-05-07 2013-08-28 常州市洋士纺织机械科技有限公司 Ni-P-nano-diamond powder composite wear resistance plating layer plating liquid and applications thereof
CN105177640A (en) * 2015-08-04 2015-12-23 重庆立道表面技术有限公司 Efficient high-performance and high-hardness chromium plating process

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
冯喜奎等: ""梳理机用针布产品特质解析与应用"", 《"经纬股份杯"2010促设备、器材、专件技术进步经验交流研讨会》 *
邱文革等: "《表面活性剂在金属加工中的应用》", 31 March 2003, 化学工业出版社 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111364073A (en) * 2020-02-25 2020-07-03 光山白鲨针布有限公司 Preparation process and product of anticorrosive wear-resistant chromium-based card clothing
CN111364073B (en) * 2020-02-25 2021-06-04 光山白鲨针布有限公司 Preparation process and product of anticorrosive wear-resistant chromium-based card clothing
CN115821577A (en) * 2022-09-21 2023-03-21 光山白鲨针布有限公司 Surface treatment method of elastic card clothing and anti-corrosion wear-resistant coating elastic card clothing

Similar Documents

Publication Publication Date Title
CN103952741B (en) Aluminium alloy anode oxide line treatment process
CN109023378B (en) Cathode roller chemical polishing solution and polishing method
CN102059637A (en) Mechanical steel wire scale removing method
JPH02122099A (en) Method and equipment for descaling stainless steel
CN108950570A (en) A kind of preparation method of negative electrode of lithium ion battery collector porous copper foil
CN103290464B (en) A kind of electrochemistry removing plating method of stainless steel black film
CN107267966A (en) A kind of continuous chrome-plated process of pin cloth
CN103774193A (en) Method for electrolytic-depositing dispersed zinc crystal nucleuses on surface of medium-high voltage electronic aluminum foil
CN107675193A (en) A kind of raw material of aluminum alloy preprocess method
CN103184471A (en) Preparation method of stainless steel based lead dioxide electrode
CN106835163B (en) Cleaning process for Ni―Ti anode surface noble metal plated film
CN107236985A (en) A kind of method of almag casting electrochemical deoiling
CN207376150U (en) A kind of special chromium plating pin cloth of spinning
CN111996582A (en) Electrochemical polishing solution for silver workpiece, application of electrochemical polishing solution and anti-oxidation method for silver workpiece
CN109112605B (en) Regeneration treatment liquid and regeneration method of titanium-based iridium-tantalum oxide coating anode for electrolytic copper foil
CN109097779B (en) Chemical polishing solution and polishing method for titanium cathode roller for electrolytic copper foil
CN103898529A (en) Rust-removing method
US4948487A (en) Electrolytic processing apparatus for metallic members
CN100585014C (en) A kind of ceramic diaphragm electrolytic cells and its production and application
CN113818014A (en) Surface brightening treatment process for black nickel product
CN110724980B (en) Local chromium plating method for stainless steel bolt
CN209174488U (en) A kind of graphite boat rinse bath
CN107119291A (en) A kind of nickel-plating liquid and the efficient nickel plating technology based on the nickel-plating liquid
US3222128A (en) Process for producing silver nitrate
CN1670264A (en) Descaling of stainless steel and device therefor

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20171020

RJ01 Rejection of invention patent application after publication