CN105862049A - Anti-blackening treatment technology for screw - Google Patents
Anti-blackening treatment technology for screw Download PDFInfo
- Publication number
- CN105862049A CN105862049A CN201610392200.5A CN201610392200A CN105862049A CN 105862049 A CN105862049 A CN 105862049A CN 201610392200 A CN201610392200 A CN 201610392200A CN 105862049 A CN105862049 A CN 105862049A
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- China
- Prior art keywords
- screw
- clean
- washing
- water
- processing technology
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Classifications
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- C—CHEMISTRY; METALLURGY
- C23—COATING 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
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/08—Iron or steel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
-
- C—CHEMISTRY; METALLURGY
- C23—COATING 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
- C23C—COATING 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
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/48—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates
- C23C22/50—Treatment of iron or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C23—COATING 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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F3/00—Brightening metals by chemical means
- C23F3/04—Heavy metals
- C23F3/06—Heavy metals with acidic solutions
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- 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)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention relates to the technical field of metal surface treatment, in particular to an anti-blackening treatment technology for a screw. The technology comprises the steps of ultrasonic degreasing cleaning, first-time water washing, acid pickling, second-time water washing, passivating, third-time water washing, chemical polishing cleaning, fourth-time water washing, hot water hole sealing and dewatering drying. According to the technology, a black skin film in a screw hole can be thoroughly removed, and the stainless steel screw can present the higher finish degree while the corrosion resistance is guaranteed.
Description
Technical field
The present invention relates to field of metal surface treatment technology, particularly to a kind of anti-blackening processing technology of screw can thoroughly removed black epithelium in stainless steel screw cave, make screw brighter.
Background technology
Stainless steel screw uses multimode heading machine to produce rear surface can produce one layer of black high temperature oil film, needs to be processed by some to remove, manifests shiny appearance.Metallic surface is processed by prior art and has a lot of method, as: China's application 201610077137.6 discloses the continuous surface of a kind of aluminum alloy strip and processes technique, China's application 201110363729.1 discloses a kind of steel band pickling rust-proofing method, Chinese patent 201010246818.3 discloses the acid washing method of a kind of 430 stainless steel surfaces, but it is mostly the product more smooth for this surface of tabular or banding, when processing screw such product, effect is undesirable.In would generally occurring screw surface and cave in conventional operation, black epithelium removes halfway problem, occurs that surface blackening shades, and causes being discontented with of client.
The present invention is contemplated to provide a kind of new treatment technology to solve problem above.
Summary of the invention
The invention aims to provide a kind of anti-blackening processing technology of screw can thoroughly removed black epithelium in stainless steel screw cave, make screw brighter.
A kind of anti-blackening processing technology of screw, its step includes:
1. ultrasonic degreasing is cleaned: immersed by screw in the water-bath containing degreasing agent, ultrasonic waves for cleaning 30-60min；
The most once washing: with deionized water by clean for screw surface washing；
3. pickling: screw is put into and cleans surface black epithelium in the hydrochloric acid solution containing acid degreasing agent；
4. secondary washing: with deionized water by clean for screw surface washing；
5. passivation: screw is immersed the nitric acid of 20-25wt%, haptoreaction 15-30min under room temperature state；
6. three washings: with deionized water by clean for screw surface washing；
7. chemical polishing clean: screw is placed in containing 24-30wt% hydrochloric acid, 1-1.5wt% nitric acid, 0.05wt% chemical polishing additive aqueous solution in, temperature controls at 92-100 DEG C, chemical polishing clean 10-30s；
8. four washings: with deionized water by clean for screw surface washing；
9. hot water sealing of hole: use the pure water of 60-80 DEG C that screw surface is carried out sealing of hole；
10. dewatered drying: use dewaterer that screw surface remains water stain removal clean, then dry with baking box.
Concrete, described step water temperature 1. is 60-80 DEG C, and degreasing agent is 5wt% thermal debinding agent and 2.5wt% sodium hydroxide.
Concrete, described thermal debinding agent is TAL-18 type thermal debinding agent.
Concrete, the consumption of described step 3. middle hydrochloric acid is 15-16wt%, and described acid degreasing agent is BG-CLEANER type acid degreasing agent, and consumption is 1wt%.
Concrete, described chemical polishing additive is CP-01 type chemical polishing additive.
Concrete, described step 10. middle temperature of drying is 80-100 DEG C, and the time is 30-60min.
The invention have benefit that:
The present invention can thoroughly remove the black epithelium in screw cave, is ensureing that beyond decay resistance, stainless steel screw can present higher fineness.
Accompanying drawing explanation
Fig. 1 is the flow chart of present invention process.
Fig. 2 be embodiment 1 with reference examples process gained stainless steel screw to contrasting.
Detailed description of the invention
As it is shown in figure 1, a kind of anti-blackening processing technology of screw, its step includes:
1. ultrasonic degreasing is cleaned: immersed by screw in the water-bath containing degreasing agent, ultrasonic waves for cleaning 30-60min；
The most once washing: with deionized water by clean for screw surface washing；
3. pickling: screw is put into and cleans surface black epithelium in the hydrochloric acid solution containing acid degreasing agent；
4. secondary washing: with deionized water by clean for screw surface washing；
5. passivation: screw is immersed the nitric acid of 20-25wt%, haptoreaction 15-30min under room temperature state；
6. three washings: with deionized water by clean for screw surface washing；
7. chemical polishing clean: screw is placed in containing 24-30wt% hydrochloric acid, 1-1.5wt% nitric acid, 0.05wt% chemical polishing additive aqueous solution in, temperature controls at 92-100 DEG C, chemical polishing clean 10-30s；
8. four washings: with deionized water by clean for screw surface washing；
9. hot water sealing of hole: use the pure water of 60-80 DEG C that screw surface is carried out sealing of hole；
10. dewatered drying: use dewaterer that screw surface remains water stain removal clean, then dry with baking box.
Below in conjunction with specific embodiment, the present invention is described in further detail.
Embodiment 1:
1. ultrasonic degreasing is cleaned: immersed by screw in the water-bath containing 5wt%TAL-18 type thermal debinding agent, 2.5wt% sodium hydroxide, ultrasonic waves for cleaning 30min；
The most once washing: with deionized water by clean for screw surface washing；
3. pickling: screw is put into containing cleaning surface black epithelium in 1wt%BG-CLEANER type acid degreasing agent and 15wt% hydrochloric acid solution；
4. secondary washing: with deionized water by clean for screw surface washing；
5. passivation: screw is immersed the nitric acid of 20wt%, haptoreaction 15-30min under room temperature state；
6. three washings: with deionized water by clean for screw surface washing；
7. chemical polishing clean: screw is placed in containing 24wt% hydrochloric acid, 1wt% nitric acid, 0.05wt%CP-01 type chemical polishing additive aqueous solution in, temperature controls at 92-100 DEG C, chemical polishing clean 10s；
8. four washings: with deionized water by clean for screw surface washing；
9. hot water sealing of hole: use the pure water of 60-80 DEG C that screw surface is carried out sealing of hole；
10. dewatered drying: use dewaterer that screw surface remains water stain removal clean, then dry with baking box, drying temperature is 80 DEG C, and the time is 30min.
Embodiment 2:
1. ultrasonic degreasing is cleaned: immersed by screw in the water-bath containing 5wt%TAL-18 type thermal debinding agent, 2.5wt% sodium hydroxide, ultrasonic waves for cleaning 60min；
The most once washing: with deionized water by clean for screw surface washing；
3. pickling: screw is put into containing cleaning surface black epithelium in 1wt%BG-CLEANER type acid degreasing agent and 16wt% hydrochloric acid solution；
4. secondary washing: with deionized water by clean for screw surface washing；
5. passivation: screw is immersed the nitric acid of 25wt%, haptoreaction 15-30min under room temperature state；
6. three washings: with deionized water by clean for screw surface washing；
7. chemical polishing clean: screw is placed in containing 30wt% hydrochloric acid, 1.5wt% nitric acid, 0.05wt%CP-01 type chemical polishing additive aqueous solution in, temperature controls at 92-100 DEG C, chemical polishing clean 30s；
8. four washings: with deionized water by clean for screw surface washing；
9. hot water sealing of hole: use the pure water of 60-80 DEG C that screw surface is carried out sealing of hole；
10. dewatered drying: use dewaterer that screw surface remains water stain removal clean, then dry with baking box, drying temperature is 100 DEG C, and the time is 60min.
Embodiment 3:
1. ultrasonic degreasing is cleaned: immersed by screw in the water-bath containing 5wt%TAL-18 type thermal debinding agent, 2.5wt% sodium hydroxide, ultrasonic waves for cleaning 40min；
The most once washing: with deionized water by clean for screw surface washing；
3. pickling: screw is put into containing cleaning surface black epithelium in 1wt%BG-CLEANER type acid degreasing agent and 15.5wt% hydrochloric acid solution；
4. secondary washing: with deionized water by clean for screw surface washing；
5. passivation: screw is immersed the nitric acid of 23wt%, haptoreaction 15-30min under room temperature state；
6. three washings: with deionized water by clean for screw surface washing；
7. chemical polishing clean: screw is placed in containing 28wt% hydrochloric acid, 1.2wt% nitric acid, 0.05wt%CP-01 type chemical polishing additive aqueous solution in, temperature controls at 92-100 DEG C, chemical polishing clean 20s；
8. four washings: with deionized water by clean for screw surface washing；
9. hot water sealing of hole: use the pure water of 60-80 DEG C that screw surface is carried out sealing of hole；
10. dewatered drying: use dewaterer that screw surface remains water stain removal clean, then dry with baking box, drying temperature is 90 DEG C, and the time is 50min.
The stainless steel screw process of embodiment 1-3 obtained is tested according to GB/T 10125-1997 " artificial atmosphere corrosion testing salt spray test ", the stainless steel screw that obtains is processed as reference examples, testing result such as following table according to Chinese patent 201010246818.3:
Embodiment 1-3 has the salt fog resistance effect suitable with reference examples as can be known from the above table, it is meant that the screw corrosion resistance that the present invention processes gained is suitable with prior art.
Can be seen that from Fig. 2, embodiment 1 process obtains stainless steel screw and processes the surface obtained more by bright bright and clean than reference examples, and the removal to black epithelium is more thorough.
Above-described is only some embodiments of the present invention.For the person of ordinary skill of the art, without departing from the concept of the premise of the invention, it is also possible to make some deformation and improvement, these broadly fall into protection scope of the present invention.
Claims (6)
1. the anti-blackening processing technology of screw, it is characterised in that step includes:
1. ultrasonic degreasing is cleaned: immersed by screw in the water-bath containing degreasing agent, ultrasonic waves for cleaning
30-60min；
The most once washing: with deionized water by clean for screw surface washing；
3. pickling: screw is put into and cleans surface black epithelium in the hydrochloric acid solution containing acid degreasing agent；
4. secondary washing: with deionized water by clean for screw surface washing；
5. passivation: screw is immersed the nitric acid of 20-25wt%, haptoreaction 15-30min under room temperature state；
6. three washings: with deionized water by clean for screw surface washing；
7. chemical polishing is cleaned: be placed in by screw containing 24-30wt% hydrochloric acid, 1-1.5wt% nitric acid, 0.05wt%
In the aqueous solution of chemical polishing additive, temperature controls at 92-100 DEG C, and 10-30s is cleaned in chemical polishing；
8. four washings: with deionized water by clean for screw surface washing；
9. hot water sealing of hole: use the pure water of 60-80 DEG C that screw surface is carried out sealing of hole；
10. dewatered drying: use dewaterer that screw surface remains water stain removal clean, then dry with baking box
Dry.
The anti-blackening processing technology of screw the most according to claim 1, it is characterised in that: described step
Rapid water temperature 1. is 60-80 DEG C, and degreasing agent is 5wt% thermal debinding agent and 2.5wt% sodium hydroxide.
The anti-blackening processing technology of screw the most according to claim 1, it is characterised in that: described heat
Degreasing agent is TAL-18 type thermal debinding agent.
The anti-blackening processing technology of screw the most according to claim 1, it is characterised in that: described step
The consumption of rapid 3. middle hydrochloric acid is 15-16wt%, and described acid degreasing agent is BG-CLEANER type acid degreasing agent,
Consumption is 1wt%.
The anti-blackening processing technology of screw the most according to claim 1, it is characterised in that: describedization
Optical polishing additive is CP-01 type chemical polishing additive.
The anti-blackening processing technology of screw the most according to claim 1, it is characterised in that: described step
Rapid 10. middle drying temperature is 80-100 DEG C, and the time is 30-60min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610392200.5A CN105862049B (en) | 2016-06-06 | 2016-06-06 | The anti-blackening processing technology of screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610392200.5A CN105862049B (en) | 2016-06-06 | 2016-06-06 | The anti-blackening processing technology of screw |
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| Publication Number | Publication Date |
|---|---|
| CN105862049A true CN105862049A (en) | 2016-08-17 |
| CN105862049B CN105862049B (en) | 2018-07-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610392200.5A Active CN105862049B (en) | 2016-06-06 | 2016-06-06 | The anti-blackening processing technology of screw |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106868508A (en) * | 2017-02-19 | 2017-06-20 | 安徽晶海纳光电科技有限公司 | A kind of vacuum equipment processing chamber wallboard regeneration treating method |
| CN108906765A (en) * | 2018-06-27 | 2018-11-30 | 芜湖金宇紧固件有限公司 | A kind of full-automation screw cleaning line |
| CN108941026A (en) * | 2018-05-10 | 2018-12-07 | 安徽北斗人防工程防护设备有限公司 | A kind of method that valve part degreasing is deoiled |
| CN114800241A (en) * | 2022-03-09 | 2022-07-29 | 法斯腾标准件(苏州)有限公司 | Bolt vibration grinding processing method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0582121A1 (en) * | 1992-08-06 | 1994-02-09 | Itb S.R.L. | Process for stainless steel pickling and passivation without using nitric acid |
| CN1270194A (en) * | 1999-04-09 | 2000-10-18 | 陕西省户县眉坞化工厂 | Chemical polishing agent and its application method |
| CN101892488A (en) * | 2009-12-03 | 2010-11-24 | 北京航空航天大学 | Method for restraining thermal oxidation coking and deposition of aviation fuel RP-3 |
| CN104498870A (en) * | 2014-12-11 | 2015-04-08 | 沈阳富创精密设备有限公司 | Aluminum plating pretreatment process of multi-arc ion plating of threaded stainless steel part and application |
-
2016
- 2016-06-06 CN CN201610392200.5A patent/CN105862049B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0582121A1 (en) * | 1992-08-06 | 1994-02-09 | Itb S.R.L. | Process for stainless steel pickling and passivation without using nitric acid |
| CN1270194A (en) * | 1999-04-09 | 2000-10-18 | 陕西省户县眉坞化工厂 | Chemical polishing agent and its application method |
| CN101892488A (en) * | 2009-12-03 | 2010-11-24 | 北京航空航天大学 | Method for restraining thermal oxidation coking and deposition of aviation fuel RP-3 |
| CN104498870A (en) * | 2014-12-11 | 2015-04-08 | 沈阳富创精密设备有限公司 | Aluminum plating pretreatment process of multi-arc ion plating of threaded stainless steel part and application |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106868508A (en) * | 2017-02-19 | 2017-06-20 | 安徽晶海纳光电科技有限公司 | A kind of vacuum equipment processing chamber wallboard regeneration treating method |
| CN108941026A (en) * | 2018-05-10 | 2018-12-07 | 安徽北斗人防工程防护设备有限公司 | A kind of method that valve part degreasing is deoiled |
| CN108906765A (en) * | 2018-06-27 | 2018-11-30 | 芜湖金宇紧固件有限公司 | A kind of full-automation screw cleaning line |
| CN108906765B (en) * | 2018-06-27 | 2020-08-07 | 芜湖金宇紧固件有限公司 | Full automatization screw cleaning line |
| CN114800241A (en) * | 2022-03-09 | 2022-07-29 | 法斯腾标准件(苏州)有限公司 | Bolt vibration grinding processing method |
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| Publication number | Publication date |
|---|---|
| CN105862049B (en) | 2018-07-13 |
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