CN105862049B - The anti-blackening processing technology of screw - Google Patents
The anti-blackening processing technology of screw Download PDFInfo
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- CN105862049B CN105862049B CN201610392200.5A CN201610392200A CN105862049B CN 105862049 B CN105862049 B CN 105862049B CN 201610392200 A CN201610392200 A CN 201610392200A CN 105862049 B CN105862049 B CN 105862049B
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- screw
- washing
- agent
- clean
- processing technology
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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 present invention relates to field of metal surface treatment technology, it is related to a kind of anti-blackening processing technology of screw, step includes ultrasonic degreasing cleaning, primary washing, pickling, secondary washing, passivation, three times washing, chemical polishing cleaning, four washings, hot water sealing of hole and dewatered drying.The present invention can thoroughly remove the black epithelium in screw cave, ensure other than corrosion resistance, higher finish can be presented in stainless steel screw.
Description
Technical field
The present invention relates to field of metal surface treatment technology, more particularly to one kind can thoroughly remove in stainless steel screw cave
Black epithelium, the anti-blackening processing technology of the screw for keeping screw brighter.
Background technology
Stainless steel screw will produce one layer of black high temperature oil film using multimode heading machine production rear surface, need to pass through
Processing removal, shows shiny appearance.There are many methods to metallic surface processing in the prior art, such as：China's application
201610077137.6 disclose a kind of continuous surface treatment process of aluminum alloy strip, and China's application 201110363729.1 discloses
A kind of steel band pickling rust-proofing method, Chinese patent 201010246818.3 disclose a kind of pickling side of 430 stainless steel surface
Method, however be mostly for the more smooth product of plate or band-like this surface, when handling product as screw, effect is paid no attention to
Think.It usually will appear black epithelium in screw surface and cave in previous operation and remove halfway problem, surface hair occur
Dark hair is dark, causes being discontented with for client.
The present invention is just to provide for a kind of new treatment technology to solve problem above.
Invention content
Black epithelium in stainless steel screw cave can thoroughly be removed the purpose of the invention is to providing one kind, make screw more
The bright anti-blackening processing technology of screw.
A kind of anti-blackening processing technology of screw, step include：
1. ultrasonic degreasing is cleaned：Screw is immersed in the water-bath containing degreasing agent, ultrasonic cleaning 30-60min；
2. primary washing：It is with deionized water that screw surface washing is clean；
3. pickling:Screw is put into cleaning surface black epithelium in the hydrochloric acid solution containing sour degreasing agent；
4. secondary washing:It is with deionized water that screw surface washing is clean；
5. being passivated：The nitric acid that screw is immersed to 20-25wt%, haptoreaction 15-30min under normal temperature state；
6. washing three times：It is with deionized water that screw surface washing is clean；
7. chemical polishing is cleaned：Screw is placed in hydrochloric acid containing 24-30wt%, 1-1.5wt% nitric acid, 0.05wt% chemistry to throw
In the aqueous solution of light additive, at 92-100 DEG C, 10-30s is cleaned in chemical polishing for temperature control, and the chemical polishing additive is
CP-01 type chemical polishing additives；
8. four washings：It is with deionized water that screw surface washing is clean；
9. hot water sealing of hole：Screw surface is subjected to sealing of hole using 60-80 DEG C of pure water；
10. dewatered drying：Screw surface water stain removal is remained using dewaterer totally, then with oven to dry.
Specifically, the water temperature of the step 1. is 60-80 DEG C, degreasing agent is the agent of 5wt% thermal debindings and 2.5wt% hydroxides
Sodium.
Specifically, the thermal debinding agent is TAL-18 type thermal debinding agent.
Specifically, the step 3. in hydrochloric acid dosage be 15-16wt%, it is described acid degreasing agent be BG-CLEANER types
Sour degreasing agent, dosage 1wt%.
Specifically, 10. middle drying temperature is 80-100 DEG C to the step, time 30-60min.
The invention has the beneficial effects that：
The present invention can thoroughly remove the black epithelium in screw cave, ensure other than corrosion resistance, stainless steel screw
Higher finish can be presented.
Description of the drawings
Fig. 1 is the flow chart of present invention process.
Fig. 2 is for embodiment 1 with reference examples processing gained stainless steel screw to contrasting.
Specific implementation mode
As shown in Figure 1, a kind of anti-blackening processing technology of screw, step include：
1. ultrasonic degreasing is cleaned：Screw is immersed in the water-bath containing degreasing agent, ultrasonic cleaning 30-60min；
2. primary washing：It is with deionized water that screw surface washing is clean；
3. pickling:Screw is put into cleaning surface black epithelium in the hydrochloric acid solution containing sour degreasing agent；
4. secondary washing:It is with deionized water that screw surface washing is clean；
5. being passivated：The nitric acid that screw is immersed to 20-25wt%, haptoreaction 15-30min under normal temperature state；
6. washing three times：It is with deionized water that screw surface washing is clean；
7. chemical polishing is cleaned：Screw is placed in hydrochloric acid containing 24-30wt%, 1-1.5wt% nitric acid, 0.05wt% chemistry to throw
In the aqueous solution of light additive, at 92-100 DEG C, 10-30s is cleaned in chemical polishing for temperature control；
8. four washings：It is with deionized water that screw surface washing is clean；
9. hot water sealing of hole：Screw surface is subjected to sealing of hole using 60-80 DEG C of pure water；
10. dewatered drying：Screw surface water stain removal is remained using dewaterer totally, then with oven to dry.
The utility model is described in further detail with reference to specific embodiment.
Embodiment 1：
1. ultrasonic degreasing is cleaned：Screw is immersed into the thermal debinding of type containing 5wt%TAL-18 agent, 2.5wt% sodium hydroxides
In water-bath, ultrasonic cleaning 30min；
2. primary washing：It is with deionized water that screw surface washing is clean；
3. pickling:Screw is put into cleaning table in the acid degreasing agent of type containing 1wt%BG-CLEANER and 15wt% hydrochloric acid solutions
Face black epithelium；
4. secondary washing:It is with deionized water that screw surface washing is clean；
5. being passivated：The nitric acid that screw is immersed to 20wt%, haptoreaction 15-30min under normal temperature state；
6. washing three times：It is with deionized water that screw surface washing is clean；
7. chemical polishing is cleaned：Screw is placed in hydrochloric acid containing 24wt%, 1wt% nitric acid, 0.05wt%CP-01 type chemistry to throw
In the aqueous solution of light additive, at 92-100 DEG C, 10s is cleaned in chemical polishing for temperature control；
8. four washings：It is with deionized water that screw surface washing is clean；
9. hot water sealing of hole：Screw surface is subjected to sealing of hole using 60-80 DEG C of pure water；
10. dewatered drying：Screw surface is remained water stain removal using dewaterer totally, then with oven to dry, drying temperature
It is 80 DEG C, time 30min.
Embodiment 2：
1. ultrasonic degreasing is cleaned：Screw is immersed into the thermal debinding of type containing 5wt%TAL-18 agent, 2.5wt% sodium hydroxides
In water-bath, ultrasonic cleaning 60min；
2. primary washing：It is with deionized water that screw surface washing is clean；
3. pickling:Screw is put into cleaning table in the acid degreasing agent of type containing 1wt%BG-CLEANER and 16wt% hydrochloric acid solutions
Face black epithelium；
4. secondary washing:It is with deionized water that screw surface washing is clean；
5. being passivated：The nitric acid that screw is immersed to 25wt%, haptoreaction 15-30min under normal temperature state；
6. washing three times：It is with deionized water that screw surface washing is clean；
7. chemical polishing is cleaned：Screw is placed in hydrochloric acid containing 30wt%, 1.5wt% nitric acid, 0.05wt%CP-01 type chemistry
In the aqueous solution of polishing additive, at 92-100 DEG C, 30s is cleaned in chemical polishing for temperature control；
8. four washings：It is with deionized water that screw surface washing is clean；
9. hot water sealing of hole：Screw surface is subjected to sealing of hole using 60-80 DEG C of pure water；
10. dewatered drying：Screw surface is remained water stain removal using dewaterer totally, then with oven to dry, drying temperature
It is 100 DEG C, time 60min.
Embodiment 3：
1. ultrasonic degreasing is cleaned：Screw is immersed into the thermal debinding of type containing 5wt%TAL-18 agent, 2.5wt% sodium hydroxides
In water-bath, ultrasonic cleaning 40min；
2. primary washing：It is with deionized water that screw surface washing is clean；
3. pickling:Screw is put into the acid degreasing agent of type containing 1wt%BG-CLEANER and 15.5wt% hydrochloric acid solutions and is cleaned
Surface black epithelium；
4. secondary washing:It is with deionized water that screw surface washing is clean；
5. being passivated：The nitric acid that screw is immersed to 23wt%, haptoreaction 15-30min under normal temperature state；
6. washing three times：It is with deionized water that screw surface washing is clean；
7. chemical polishing is cleaned：Screw is placed in hydrochloric acid containing 28wt%, 1.2wt% nitric acid, 0.05wt%CP-01 type chemistry
In the aqueous solution of polishing additive, at 92-100 DEG C, 20s is cleaned in chemical polishing for temperature control；
8. four washings：It is with deionized water that screw surface washing is clean；
9. hot water sealing of hole：Screw surface is subjected to sealing of hole using 60-80 DEG C of pure water；
10. dewatered drying：Screw surface is remained water stain removal using dewaterer totally, then with oven to dry, drying temperature
It is 90 DEG C, time 50min.
The stainless steel screw that embodiment 1-3 processing is obtained is according to GB/T 10125-1997《Artificial atmosphere corrosion test salt
Mist is tested》It is tested, obtained stainless steel screw example as a contrast, detection is handled according to Chinese patent 201010246818.3
As a result such as following table：
Embodiment 1-3 has and the comparable salt resistance fog effect of reference examples as can be known from the above table, it is meant that present invention processing gained
Screw corrosion resistance it is suitable with the prior art.
It can be seen that from Fig. 2, the processing of embodiment 1 obtains stainless steel screw will more become clear than the surface that reference examples are handled
It is bright and clean, it is more thorough to the removal of black epithelium.
Above-described is only some embodiments of the utility model.For those of ordinary skill in the art,
Without departing from the concept of the present invention, various modifications and improvements can be made, these belong to this practicality
Novel protection domain.
Claims (5)
1. a kind of anti-blackening processing technology of screw, it is characterised in that step includes：
1. ultrasonic degreasing is cleaned：Screw is immersed in the water-bath containing degreasing agent, ultrasonic cleaning 30-60min；
2. primary washing：It is with deionized water that screw surface washing is clean；
3. pickling:Screw is put into cleaning surface black epithelium in the hydrochloric acid solution containing sour degreasing agent；
4. secondary washing:It is with deionized water that screw surface washing is clean；
5. being passivated：The nitric acid that screw is immersed to 20-25wt%, haptoreaction 15-30min under normal temperature state；
6. washing three times：It is with deionized water that screw surface washing is clean；
7. chemical polishing is cleaned：Screw is placed in hydrochloric acid containing 24-30wt%, 1-1.5wt% nitric acid, 0.05wt% chemical polishings add
In the aqueous solution for adding agent, at 92-100 DEG C, 10-30s is cleaned in chemical polishing for temperature control, and the chemical polishing additive is CP-
01 type chemical polishing additive；
8. four washings：It is with deionized water that screw surface washing is clean；
9. hot water sealing of hole：Screw surface is subjected to sealing of hole using 60-80 DEG C of pure water；
10. dewatered drying：Screw surface water stain removal is remained using dewaterer totally, then with oven to dry.
2. the anti-blackening processing technology of screw according to claim 1, it is characterised in that：The water temperature of the step 1. is 60-
80 DEG C, degreasing agent is the agent of 5wt% thermal debindings and 2.5wt% sodium hydroxides.
3. the anti-blackening processing technology of screw according to claim 1, it is characterised in that：The thermal debinding agent is TAL-18 types
Thermal debinding agent.
4. the anti-blackening processing technology of screw according to claim 1, it is characterised in that：The step 3. in hydrochloric acid dosage
For 15-16wt%, the acid degreasing agent is BG-CLEANER type acid degreasing agents, dosage 1wt%.
5. the anti-blackening processing technology of screw according to claim 1, it is characterised in that：10. middle drying temperature is the step
80-100 DEG C, time 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 CN105862049A (en) | 2016-08-17 |
| CN105862049B true CN105862049B (en) | 2018-07-13 |
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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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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106868508B (en) * | 2017-02-19 | 2019-04-16 | 安徽晶海纳光电科技有限公司 | A kind of vacuum equipment processing chamber siding 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 |
| 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 |
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 |
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|---|---|
| CN105862049A (en) | 2016-08-17 |
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