CN111501028A - Protection method with sealing structure and sealing protection tool - Google Patents
Protection method with sealing structure and sealing protection tool Download PDFInfo
- Publication number
- CN111501028A CN111501028A CN202010363036.1A CN202010363036A CN111501028A CN 111501028 A CN111501028 A CN 111501028A CN 202010363036 A CN202010363036 A CN 202010363036A CN 111501028 A CN111501028 A CN 111501028A
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- Prior art keywords
- protection
- sealing
- protective
- tool
- protection tool
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- 238000007789 sealing Methods 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000001681 protective effect Effects 0.000 claims abstract description 51
- 238000004381 surface treatment Methods 0.000 claims abstract description 12
- 230000007704 transition Effects 0.000 claims abstract description 5
- 229920002379 silicone rubber Polymers 0.000 claims description 36
- 229920001971 elastomer Polymers 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 23
- 238000007747 plating Methods 0.000 claims description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 8
- 239000002253 acid Substances 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 239000000741 silica gel Substances 0.000 claims description 7
- 229910002027 silica gel Inorganic materials 0.000 claims description 7
- 238000010074 rubber mixing Methods 0.000 claims description 6
- 239000003513 alkali Substances 0.000 claims description 5
- 238000009713 electroplating Methods 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000004945 silicone rubber Substances 0.000 claims description 4
- 238000013329 compounding Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 230000002633 protecting effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 9
- 239000003292 glue Substances 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 12
- 238000013461 design Methods 0.000 description 7
- 229910052759 nickel Inorganic materials 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 231100000252 nontoxic Toxicity 0.000 description 3
- 230000003000 nontoxic effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000002585 base Substances 0.000 description 2
- 238000010923 batch production Methods 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009965 odorless effect Effects 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010068 moulding (rubber) Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Images
Classifications
-
- 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
- C23C18/00—Chemical 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
- C23C18/16—Chemical 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
- C23C18/1601—Process or apparatus
- C23C18/1603—Process or apparatus coating on selected surface areas
- C23C18/1605—Process or apparatus coating on selected surface areas by masking
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/02—Electroplating of selected surface areas
- C25D5/022—Electroplating of selected surface areas using masking means
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Electrochemistry (AREA)
- Gasket Seals (AREA)
Abstract
The invention belongs to the technical field of local protection of metal surface treatment, and relates to a protection method with a sealing structure and a sealing protection tool. This frock includes: a protective sleeve and sealing lip edge structure; the protective sleeve seals and protects the part; the sealing lip structure seals the transition area of the protection part. The original traditional protection mode is replaced by the tool, the original local protection mode achieved through manual bonding and hanging glue is changed, the protection quality is improved, the efficiency is improved, the environment is protected, the energy is saved, and the cost is reduced and the effect is increased.
Description
Technical Field
The invention belongs to the technical field of local protection of metal surface treatment, and relates to a protection method with a sealing structure and a sealing protection tool.
Background
Parts such as bearing seats, bushings, shafts and discs of aero-engines need to be subjected to local modification treatment on metal surfaces of specific areas of the parts by adopting processes such as chemical plating, electroplating and the like. Most surface modification treatment processes are carried out in high-temperature, strong acid, strong alkali and strong corrosion environments, for example, chemical nickel plating is taken as an example, the temperature of a nickel plating bath is as high as more than 90 ℃, the treatment time is long, parts are treated by strong-corrosion chemical reagents such as strong acid and the like before nickel plating, and strict protection measures are required to be taken on the non-plating surface of the parts to ensure that the non-plating surface of the parts is free from over-plating or corrosion.
The traditional local protection measures are generally implemented by manually bonding a protective tape, coating acid-base-resistant glue or combining the protective tape and the acid-base-resistant glue. The protection method has the following disadvantages: the protection sealing effect is unstable, the quality of the part coating is not controllable, and the qualification rate is low; the protective material is adhered to the surface of the part, so that the part is polluted and needs to be cleaned; the manual protection period is long, and the production efficiency is low; the protective consumable is disposable, and the manufacturing cost is high; the protective glue is toxic, pollutes the environment and damages health.
Disclosure of Invention
The purpose of the invention is: the application method of the organic silicon rubber in the field of surface treatment local protection is provided, the original traditional protection mode is replaced, the original method for realizing local protection through manual bonding and rubberizing is changed, the protection quality is improved, the efficiency is improved, the environment is protected, the energy is saved, the cost is reduced, and the effect is improved.
In a first aspect, a method of shielding with a sealed structure is provided, including:
selecting a material with excellent temperature resistance, acid and alkali resistance, electric insulation, good elasticity and formability as a material of a sealing protection tool of a part;
determining the structure of a sealing protection tool according to different protection part structures of the part, wherein the sealing protection tool protects non-chemical plating and electroplating areas;
manufacturing a sealing protection tool according to the selected material and the structure of the sealing protection tool;
assembling the sealing protection tool and the parts;
and carrying out surface treatment on the assembled parts.
Further, the selected material is organic silicon rubber.
Further, according to the structure of the material of selecting for use and sealed protection frock, make sealed protection frock and include:
adding silica gel raw rubber of a compounding agent into the mixture, and mechanically mixing the silica gel raw rubber to obtain an organic silicon rubber mixing rubber material;
and heating and forming the organic silicon rubber mixing rubber material into the sealing protection tool by using a forming die.
Furthermore, when different protection parts of the part are protected, sealing protection tools made of organic silicon rubber with different hardness can be selected for protection.
In a second aspect, a seal protection tool is provided, which includes: a protective sleeve and sealing lip edge structure; the protective sleeve seals and protects the part; the sealing lip structure seals the transition area of the protection part.
Furthermore, the protective sleeve and the protective outer diameter of the protective part have enough tightness so that the protective sleeve is tightly attached to the protective part.
Furthermore, when the protection part is provided with a tooth top and a tooth side, the protection sleeve is provided with a gap structure at the position corresponding to the junction of the tooth top and the tooth side.
Furthermore, the sealing protection tool is of a split structure or an integral structure.
Further, to the components of a whole that can function independently structure, sealed protection frock includes: 2 protective sleeves and 2 sealing lip edge structures, wherein one protective sleeve and one sealing lip edge structure form a whole, and the other protective sleeve and the other sealing lip edge structure form another whole; be provided with the locking between 2 protective sheaths and detain to make two whole synthetic sealed protection frocks assemble.
Further, the method also comprises the following steps: pressing a plate; external force is applied to the two ends of the protective sleeve through the pressing plates; the protective part and the pressure plate are fastened into a whole through the screw and the nut.
The invention has the technical effects that: the application method of the organic silicon rubber in the field of surface treatment local protection utilizes excellent temperature resistance, acid and alkali resistance, electric insulation, good elasticity and formability characteristics of the organic silicon rubber, designs a special sealing protection tool according to different protection part structures of parts, protects non-chemical plating and electroplating areas, then integrally performs surface treatment, has good protection effect, uniform quality of a part surface coating and accurate and neat coating transition area. The organic silicon rubber protection tool is convenient, quick and efficient to disassemble and assemble, and the single piece protection efficiency is shortened to 3-5 minutes from the original 2-3 days. The organic silicon is nontoxic, odorless, safe and environment-friendly. The organic silicon rubber protection tool can be repeatedly used, the service life is long, and cost reduction and efficiency improvement are remarkable for the rubber protection tool in batch production.
Drawings
FIG. 1 is a schematic structural design view of a sealing protection tool for an outer diameter end face of a straight tooth;
FIG. 2 is a schematic structural view of a sealing protection tool with a split structure;
FIG. 3 is a schematic structural view of a seal protection tool of unitary construction;
FIG. 4 is a schematic structural view of a seal protection tool for applying external force to electroless nickel plating;
FIG. 5 is a diagram of a conformal protection structure of a rubber protection sleeve (a sealing protection tool);
fig. 6 is a picture of bi-directional compression between parts by a spacer sleeve.
Detailed Description
The technical solution of the invention is as follows: utilize excellent temperature resistant, acid and alkali-resistance, electrical insulation and good elasticity performance of silicone rubber, add white carbon black and vulcanizer in the crude rubber of silica gel and mix, form the silicon rubber gross rubber, twine the silicon rubber gross rubber in the mould of processing preparation, the heating after the compound die, further the cross-linking solidifies into required protection organosilicon rubber seal protection frock, the raw materials price is cheap relatively, nontoxic tasteless, can be used to make surface treatment's local protection frock, protect the non-chemical plating and the electroplating zone that need protect, frock and part wholly carry out surface treatment.
A protection method with a sealing structure is characterized in that a sealing protection tool is made of organic silicon rubber and used for local protection of part surface treatment, and various defects existing in an original protection method are eliminated.
Firstly, according to the surface treatment process, selecting a proper rubber material, and designing a special rubber protection tool aiming at a special structure of a protection part. And (4) processing and manufacturing the special rubber molding die according to the protection tool drawing. And mechanically mixing the raw silica gel added with the compounding agent by using a forming die to obtain an organic silicon rubber mixing material, and heating and forming the organic silicon rubber mixing material into the rubber sealing protection tool. And then, carrying out a first protection test on the sealing protection tool, optimizing or curing the protection tool structure according to the test effect, and subsequently carrying out batch production, engineering application and technical popularization.
The design of the sealing protection tool is generally divided into regular-shaped tools such as an outer shaft neck (a straight surface and an inclined surface), an inner hole (or an inner spline) and the like according to the structural characteristics of a protection part of a part, and further comprises tools with different specifications and complex structures inside and outside the part.
The design of the sealing protection tool has the key point that the sealing end opening of the protection tool plays a role in sealing and controls the size of a plating transition area of a part.
Except for the sealing port, other protective shielding parts of the sealing protective tool are consistent with the appearance of the part as much as possible and have certain tightness.
For special structural parts, a pressing structure can be designed when a sealing port of the protective tool is necessary, and the sealing effect is enhanced by applying external force.
The rubber forming die has enough bearing capacity, and is simple to operate and convenient to use.
The rubber material is an organosilicon rubber material which has certain temperature resistance and acid and alkali resistance, can meet the technical requirements of chemical nickel plating, electro-coppering, oxidation and the like in surface treatment and is electrically insulated; the organic silicon rubber material has high chemical stability and does not corrode and pollute parts; the organic silicon rubber material is non-toxic and odorless, and meets the requirements of environmental safety and occupational health; the organic silicon rubber has good elasticity, flexibility and processability, the organic silicon rubber needs to be mechanically stirred and mixed by adding white carbon black and a vulcanizing agent into raw silica gel, and then vulcanized, the vulcanized organic silicon rubber for manufacturing the protective tool has the tensile strength of 4.0-12.5Mpa, the elongation: 90-120 percent.
The organic silicon rubber material can select organic silicon rubber devices with different hardness for protection when different areas of the part are protected according to the characteristics and the protection performance of the part. The silicone rubber hardness is usually selected from Shore Hardness (HSD) of 35-45 degrees and HSD 50-60 degrees.
FIG. 1 shows a copper plating protection tool for a certain part: and the structural design of the sealing protection tool for the outer diameter end face of the straight tooth.
The sealing protection tool adopts organic silicon rubber;
the sealing protection tool is designed into a split structure (figure 2) and an integral structure (figure 3):
a sealing lip edge structure A is designed at the sealing end of the sealing protection tool, so that the sealing effect of the protection sleeve is improved;
enough tightness exists between the protective sleeve and the protective outer diameter;
the rubber protective sheath addendum and the flank juncture design have a void structure, reduce the assembly resistance, increase the end face seal effect.
Aiming at the split structure design, a locking buckle B (anti-skid lock) is designed between the inner sleeve and the outer sleeve.
And designing a corresponding organic silicon rubber protective sleeve mold according to the straight tooth outer diameter end surface rubber protective structure. Due to the characteristics of the part structure, the Shore hardness of the selected organic silicon rubber is 50-55 degrees, so that the organic silicon rubber protective sleeve manufactured by processing is convenient to mount and dismount while the sealing and protecting effects are good.
And (4) a sealing protection tool for applying external force to the electroless nickel plating (figure 4).
The protection structure comprises an organic silicon rubber sleeve and a pressing plate pressing structure;
the rubber protective sleeve is of a conformal protective structure (figure 5);
the parts are pressed in two directions through a spacer sleeve (figure 6);
and designing a corresponding organic silicon rubber protective sleeve mold according to the straight tooth outer diameter end surface rubber protective structure. Because the part structure is complicated, the shore hardness of the selected organic silicon rubber is 40-45 degrees, so that the organic silicon rubber protective sleeve manufactured by processing has good protective effect and is convenient to mount and dismount.
External force is applied to the two ends of the organic silicon rubber protective sleeve through the pressing plates;
the protective part and the pressure device are fastened into a whole through a screw and a nut.
Claims (10)
1. A method of safeguarding with a sealed structure, comprising:
selecting a material with excellent temperature resistance, acid and alkali resistance, electric insulation, good elasticity and formability as a material of a sealing protection tool of a part;
determining the structure of a sealing protection tool according to different protection part structures of the part, wherein the sealing protection tool protects non-chemical plating and electroplating areas;
manufacturing a sealing protection tool according to the selected material and the structure of the sealing protection tool;
assembling the sealing protection tool and the parts;
and carrying out surface treatment on the assembled parts.
2. The method of claim 1, wherein the selected material is silicone rubber.
3. The method of claim 2, wherein manufacturing the seal protection tool comprises, depending on the material selected and the structure of the seal protection tool:
adding silica gel raw rubber of a compounding agent into the mixture, and mechanically mixing the silica gel raw rubber to obtain an organic silicon rubber mixing rubber material;
and heating and forming the organic silicon rubber mixing rubber material into the sealing protection tool by using a forming die.
4. The method as claimed in claim 2, wherein when protecting different parts of the part, the sealing protection tool of silicone rubber with different hardness can be selected for protection.
5. The utility model provides a sealed protection frock which characterized in that includes: a protective sleeve and sealing lip edge structure; the protective sleeve seals and protects the part; the sealing lip structure seals the transition area of the protection part.
6. The tooling of claim 5, wherein the protective sleeve is sufficiently tight to the outer protective diameter of the protective site to allow the protective sleeve to be placed against the protective site.
7. The tooling of claim 5, wherein when the protection part has a tooth top and a tooth side, the protection sleeve is designed with a gap structure at a position corresponding to the junction of the tooth top and the tooth side.
8. The tooling of claim 5, wherein the seal protection tooling is of a split structure or an integral structure.
9. The tooling of claim 8, wherein for a split structure, the seal protection tooling comprises: 2 protective sleeves and 2 sealing lip edge structures, wherein one protective sleeve and one sealing lip edge structure form a whole, and the other protective sleeve and the other sealing lip edge structure form another whole; be provided with the locking between 2 protective sheaths and detain to make two whole synthetic sealed protection frocks assemble.
10. The tooling of claim 5, further comprising: pressing a plate; external force is applied to the two ends of the protective sleeve through the pressing plates; the protective part and the pressure plate are fastened into a whole through the screw and the nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010363036.1A CN111501028A (en) | 2020-04-30 | 2020-04-30 | Protection method with sealing structure and sealing protection tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010363036.1A CN111501028A (en) | 2020-04-30 | 2020-04-30 | Protection method with sealing structure and sealing protection tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111501028A true CN111501028A (en) | 2020-08-07 |
Family
ID=71873130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010363036.1A Pending CN111501028A (en) | 2020-04-30 | 2020-04-30 | Protection method with sealing structure and sealing protection tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111501028A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101302637A (en) * | 2008-06-16 | 2008-11-12 | 深圳国人通信有限公司 | Surface protection method of plating material in electroplating procedure |
| EP2326752A2 (en) * | 2008-08-19 | 2011-06-01 | MAHLE International GmbH | Coating mask for electrolytically coating a peripheral region on an outer surface of a cylindrical body |
| CN103173820A (en) * | 2011-12-20 | 2013-06-26 | 贵州黎阳航空动力有限公司 | Protection method of precision holes or grooves in chemical nickel-plating process of metal parts |
| CN105803496A (en) * | 2016-03-15 | 2016-07-27 | 南通市申海工业技术科技有限公司 | Local zinc and nickel plating tool for automobile wheel hub |
| CN208395292U (en) * | 2018-05-30 | 2019-01-18 | 株洲航发橡塑制品有限公司 | Aero-engine gear plating protective case |
-
2020
- 2020-04-30 CN CN202010363036.1A patent/CN111501028A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101302637A (en) * | 2008-06-16 | 2008-11-12 | 深圳国人通信有限公司 | Surface protection method of plating material in electroplating procedure |
| EP2326752A2 (en) * | 2008-08-19 | 2011-06-01 | MAHLE International GmbH | Coating mask for electrolytically coating a peripheral region on an outer surface of a cylindrical body |
| CN103173820A (en) * | 2011-12-20 | 2013-06-26 | 贵州黎阳航空动力有限公司 | Protection method of precision holes or grooves in chemical nickel-plating process of metal parts |
| CN105803496A (en) * | 2016-03-15 | 2016-07-27 | 南通市申海工业技术科技有限公司 | Local zinc and nickel plating tool for automobile wheel hub |
| CN208395292U (en) * | 2018-05-30 | 2019-01-18 | 株洲航发橡塑制品有限公司 | Aero-engine gear plating protective case |
Non-Patent Citations (1)
| Title |
|---|
| 柴春鹏等: "《高分子合成材料学》", 31 January 2019, 北京理工大学出版社 * |
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Application publication date: 20200807 |
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