CN113524587A - Rubber injection mold for aluminum hard oxidation treatment process and treatment method thereof - Google Patents
Rubber injection mold for aluminum hard oxidation treatment process and treatment method thereof Download PDFInfo
- Publication number
- CN113524587A CN113524587A CN202110734039.6A CN202110734039A CN113524587A CN 113524587 A CN113524587 A CN 113524587A CN 202110734039 A CN202110734039 A CN 202110734039A CN 113524587 A CN113524587 A CN 113524587A
- Authority
- CN
- China
- Prior art keywords
- rubber injection
- injection mold
- rubber
- oxidation treatment
- hard oxidation
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
Abstract
A rubber injection mould for the hard oxidation treatment of aluminium material is composed of a rubber injection mould body made of aluminium material and an oxide layer on the surface of said rubber injection mould body. The method has the advantages that the oxidation layer is formed on the surface of the mold in the hard oxidation process, so that heavy metal or other pollutants contained in the raw rubber material are not easy to adhere to the mold cavity. In addition, the oxide layer formed on the surface of the die has the advantages of higher hardness, difficult abrasion of a runner of the die cavity after long-term use and the like.
Description
Technical Field
The invention relates to a rubber injection mold and also relates to a processing method of the rubber injection mold.
Background
The material of the mold used by the existing rubber injection machine is generally steel or aluminum mold, and the steel rubber injection mold is durable, but has the problems of poor mold closing sealing performance, no dirt resistance, difficult demolding and the like.
Although the aluminum rubber injection mold has better mold closing tightness and is more suitable for being used as a vacuum-pumping mold, the aluminum rubber injection mold also has the problems that the mold is not dirty, a mold cavity runner is easy to polish, the demolding is difficult and the like.
Disclosure of Invention
In order to solve the problems, the rubber injection mold which is more durable, has better mold closing sealing performance and is more suitable for the aluminum hard oxidation treatment process of the rubber injection mold is specially manufactured.
In order to achieve the above purpose, the invention is solved by the following technical scheme: a rubber injection mould for an aluminum hard oxidation treatment process comprises a rubber injection mould body made of aluminum, wherein an oxide layer subjected to hard oxidation treatment is arranged on the surface of the rubber injection mould body.
Further, the thickness of the oxide layer is 25-150 um.
Further, the thickness of the oxide layer is 50-80 um.
Further, the rubber injection mold body is a rubber product injection mold.
The invention also provides a treatment method of the rubber injection mold of the aluminum hard oxidation treatment process, which comprises the steps of treating the rubber injection mold body through the hard oxidation process, and sealing the hole of the rubber injection mold body treated through the oxidation process through tetrafluoroethylene.
The invention has the advantages that:
1. compared with the traditional aluminum or steel mold, the rubber injection mold subjected to hard oxidation treatment is more resistant to dirt firstly, and a layer of oxide layer is formed on the surface of the mold in the hard oxidation process, so that heavy metal or other pollutants contained in the raw rubber material are not easy to adhere to the mold cavity. In addition, the oxide layer formed on the surface of the die has higher hardness, and the runner of the die cavity is not easy to wear after long-term use.
2. The aluminum material is used as a substrate, through hard oxidation, the product has no burrs, and meanwhile, the mold made of rubber copper or iron has lighter weight and is more suitable for products needing frequent mold changing, such as sole molds.
3. After hard oxidation treatment, an oxide layer is formed on the surface of the die, so that the product is easy to demould.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Hard anodizing is a thick film anodizing process, which is a special anodizing surface treatment process for aluminum and aluminum alloys. The maximum thickness of the anodic oxide layer prepared by the process can reach about 250 microns, and 1500kg/mm can be obtained on aluminum2The micro-hardness oxide layer can obtain 400-600kg/mm on the aluminum alloy2The microhardness oxide layer is a rubber injection with aluminum alloy as a substrateThe surface hardness of the injection mold after hard oxidation treatment is more than HV 500.
A rubber injection mould for the hard oxidation treatment of aluminium material is composed of a rubber injection mould body made of aluminium material and an oxide layer on the surface of said rubber injection mould body. The hard anodic oxidation layer generally requires thickness of 25-150um, most of the hard anodic oxidation layers have thickness of 50-80um, the film thickness is less than 25um, the hard anodic oxidation layer is used for parts of tooth keys, spiral threads and other use occasions, the thickness of the wear-resistant or insulating anodic oxidation layer is about 50um, and under some special process conditions, the hard anodic oxidation layer with thickness of more than 125um is required to be produced.
The rubber injection mould body is a rubber product injection mould, such as a rubber tire mould, a rubber sole injection mould and the like. Wherein, the sole is because the style is more, and contains more runner in the cavity, consequently, the frequent change of being convenient for more of the mould that weight is lighter, and the higher cavity of hardness can reduce the mould and maintain the number of times.
In the injection vulcanization process of the rubber tire, vacuum pumping treatment is generally needed, and the mold is required to have good mold closing sealing performance. Therefore, the invention aims at the rubber injection type mould, improves the traditional mould and solves the defect of adopting the aluminium, steel or pure iron mould. The hard oxidized rubber injection mold has the advantages of durability, strong sealing performance, dirt resistance, easy demolding and difficult abrasion of a mold cavity. The production efficiency and the product quality of the rubber injection product are improved.
After the rubber injection mold taking the aluminum alloy as the substrate is subjected to hard oxidation treatment, the rubber product formed by injection molding has better surface effect and more delicate appearance.
A rubber injection mould processing method of aluminum hard oxidation processing technology is characterized in that a rubber injection mould body is processed through a hard oxidation process, and then the rubber injection mould body processed through the oxidation process is subjected to hole sealing processing through tetrafluoroethylene. The surface hardness of the cavity is improved, and the friction coefficient of the surface of the cavity is also reduced.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it is therefore intended that the present embodiments be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (6)
1. A rubber injection mold of an aluminum hard oxidation treatment process is characterized by comprising a rubber injection mold body made of aluminum, wherein an oxide layer subjected to hard oxidation treatment is arranged on the surface of the rubber injection mold body.
2. A rubber injection mold for aluminum hard oxidation treatment process according to claim 1, wherein the thickness of the oxide layer is 25-150 um.
3. The rubber injection mold for aluminum hard oxidation treatment process as recited in claim 2, wherein the thickness of the oxide layer is 50-80 um.
4. A rubber injection mold for aluminum hard oxidation treatment process according to claim 3, wherein the rubber injection mold body is a rubber product injection mold.
5. A processing method of a rubber injection mould of an aluminum hard oxidation treatment process is characterized in that a rubber injection mould body is processed through a hard oxidation process.
6. The method for treating the rubber injection mold of the aluminum hard oxidation treatment process, according to claim 5, is characterized in that after the hardening process, the rubber injection mold body subjected to the oxidation process is subjected to hole sealing treatment through tetrafluoroethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110734039.6A CN113524587A (en) | 2021-06-30 | 2021-06-30 | Rubber injection mold for aluminum hard oxidation treatment process and treatment method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110734039.6A CN113524587A (en) | 2021-06-30 | 2021-06-30 | Rubber injection mold for aluminum hard oxidation treatment process and treatment method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113524587A true CN113524587A (en) | 2021-10-22 |
Family
ID=78126302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110734039.6A Pending CN113524587A (en) | 2021-06-30 | 2021-06-30 | Rubber injection mold for aluminum hard oxidation treatment process and treatment method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113524587A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09123225A (en) * | 1995-11-02 | 1997-05-13 | Ricoh Co Ltd | Formation of hard alumite film for mold of aluminum alloy for injection molding |
-
2021
- 2021-06-30 CN CN202110734039.6A patent/CN113524587A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09123225A (en) * | 1995-11-02 | 1997-05-13 | Ricoh Co Ltd | Formation of hard alumite film for mold of aluminum alloy for injection molding |
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