CN108262904A - A kind of preparation process of silastic press key - Google Patents
A kind of preparation process of silastic press key Download PDFInfo
- Publication number
- CN108262904A CN108262904A CN201810083792.1A CN201810083792A CN108262904A CN 108262904 A CN108262904 A CN 108262904A CN 201810083792 A CN201810083792 A CN 201810083792A CN 108262904 A CN108262904 A CN 108262904A
- Authority
- CN
- China
- Prior art keywords
- mixing
- preparation process
- press key
- silastic
- molding
- 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
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/002—Methods
- B29B7/005—Methods for mixing in batches
-
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
-
- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/46—Knobs or handles, push-buttons, grips
- B29L2031/466—Keypads, keytops
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of preparation process of silastic press key, including processes such as mixer mixing, mill mixing, sulfidization molding, post-cures.Button silicone rubber mixture after mixing, beginning to pratise, then is carried out post-cure molding by the present invention, reduces vulcanizing agent decomposition product equal size remaining in rubber compound, advantageously reduces bubble, improves product quality.
Description
Technical field
The present invention relates to Plastic Rubber Products processing technique field, the preparation process of specifically a kind of silastic press key.
Background technology
With the fast development of Information technology, such as notebook computer, mobile phone, personal digital assistant and digital phase
The electronic devices such as machine are had become as tool indispensable in people's daily life, and button is between user and the electronic device
Communication interface, as people increasingly popularize the use demand of electronic device, different buttons is also fast-developing therewith.In recent years
To develop into rubber conduction key（Plastic key must be added）, structure is to place rubber conduction key on a printed circuit by rubber conduction
The shortcomings that grain contacts and generates electric signal, it overcomes preceding kind of button, but it is very time-consuming in combination；For its shortcoming, and open
Send out conductive key and the rubber key of keyboard one, raw materials used mainly silicon rubber.But after prepared by existing silastic press key
Easily generate bubble, high rejection rate.
Invention content
The purpose of the present invention is to provide a kind of preparation process of silastic press key, to solve to propose in above-mentioned background technology
The problem of.
To achieve the above object, the present invention provides following technical solution：
A kind of preparation process of silastic press key, includes the following steps：
S1, standby mould, and surface sand-blasting process is carried out, it is carried out at the same time stock；
Raw material is sent into chamber body of mixer, mixing 30min by S2, mixer mixing, and discharging is put cool；
S3, mill mixing by the mixing glue of cooling input open mill, add in vulcanizing agent, obtain rubber compound and begin to pratise material；
S4, sulfidization molding, be put on vacuum vulcanization machine male model the black grain of conducting resinl and slice weigh silica gel push-button raw material and
Color key is filled in master mold, after being ready to molding heated, press cure, with the use of air pressure gun after the completion of vulcanization, molding is pressed
Key is removed from the molds；
Forming press key is put into vertical type oven by S5, post-cure, and 2-2.5h is heated at 180-220 DEG C of temperature parameter；
S6, oil spout and laser carving.
As further embodiment of the present invention：In step S2, chamber body of mixer temperature is set as 95-100 DEG C.
As further embodiment of the present invention：In step S3, temperature when mixing glue puts into open mill is less than 45 DEG C.
As further embodiment of the present invention：In step S3, open mill time of beginning to pratise is set as 20-25min.
As further embodiment of the present invention：Vulcanization parameters are set as in step S4：Temperature：160℃±10℃；Pressure
Power 15-20MPa；Vulcanization time 150-200s.
Compared with prior art, the beneficial effects of the invention are as follows：Button silicone rubber mixture is passed through mixing, opened by the present invention
After white silk, then post-cure molding is carried out, reduce vulcanizing agent decomposition product equal size remaining in rubber compound, advantageously reduce gas
Bubble improves product quality.
Specific embodiment
The technical solution in the embodiment of the present invention is clearly and completely described below, it is clear that described embodiment
Only part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
Art personnel all other embodiments obtained without making creative work belong to the model that the present invention protects
It encloses.
In the embodiment of the present invention, a kind of preparation process of silastic press key includes the following steps：
S1, standby mould, and surface sand-blasting process is carried out, it is carried out at the same time stock；
Raw material is sent into chamber body of mixer, mixing 30min by S2, mixer mixing, and discharging is put cool；
S3, mill mixing by the mixing glue of cooling input open mill, add in vulcanizing agent, obtain rubber compound and begin to pratise material；
S4, sulfidization molding, be put on vacuum vulcanization machine male model the black grain of conducting resinl and slice weigh silica gel push-button raw material and
Color key is filled in master mold, after being ready to molding heated, press cure, with the use of air pressure gun after the completion of vulcanization, molding is pressed
Key is removed from the molds；
Forming press key is put into vertical type oven by S5, post-cure, 2-2.5h is heated at 180-220 DEG C of temperature parameter, by two
After secondary vulcanization, the product equal size that remaining vulcanizing agent decomposes in product substantially reduces, and phenomena such as being conducive to reduce bubble, improves
Properties of product；
S6, oil spout and laser carving.
In step S2, chamber body of mixer temperature is set as 95-100 DEG C.
In step S3, temperature when mixing glue puts into open mill is less than 45 DEG C.
In step S3, open mill time of beginning to pratise is set as 20-25min.
Vulcanization parameters are set as in step S4：Temperature：160℃±10℃；Pressure 15-20MPa；Vulcanization time 150-
200s。
It is obvious to a person skilled in the art that the present invention is not limited to the details of above-mentioned exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requirement rather than above description limit, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims
Variation is included within the present invention.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in each embodiment can also be properly combined, forms those skilled in the art
The other embodiment being appreciated that.
Claims (5)
1. a kind of preparation process of silastic press key, it is characterised in that：Include the following steps：
S1, standby mould, and surface sand-blasting process is carried out, it is carried out at the same time stock；
Raw material is sent into chamber body of mixer, mixing 30min by S2, mixer mixing, and discharging is put cool；
S3, mill mixing by the mixing glue of cooling input open mill, add in vulcanizing agent, obtain rubber compound and begin to pratise material；
S4, sulfidization molding, be put on vacuum vulcanization machine male model the black grain of conducting resinl and slice weigh silica gel push-button raw material and
Color key is filled in master mold, after being ready to molding heated, press cure, with the use of air pressure gun after the completion of vulcanization, molding is pressed
Key is removed from the molds；
Forming press key is put into vertical type oven by S5, post-cure, and 2-2.5h is heated at 180-220 DEG C of temperature parameter；
S6, oil spout and laser carving.
2. a kind of preparation process of silastic press key according to claim 1, it is characterised in that：In step S2, mixer
Mixing room temperature is set as 95-100 DEG C.
3. a kind of preparation process of silastic press key according to claim 1, it is characterised in that：In step S3, mixing glue
Temperature when putting into open mill is less than 45 DEG C.
4. a kind of preparation process of silastic press key according to claim 1 or 3, it is characterised in that：In step S3, mill
Machine time of beginning to pratise is set as 20-25min.
5. a kind of preparation process of silastic press key according to claim 1, it is characterised in that：Sulfuration process in step S4
Parameter is set as：Temperature：160℃±10℃；Pressure 15-20MPa；Vulcanization time 150-200s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810083792.1A CN108262904A (en) | 2018-01-29 | 2018-01-29 | A kind of preparation process of silastic press key |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810083792.1A CN108262904A (en) | 2018-01-29 | 2018-01-29 | A kind of preparation process of silastic press key |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108262904A true CN108262904A (en) | 2018-07-10 |
Family
ID=62776898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810083792.1A Withdrawn CN108262904A (en) | 2018-01-29 | 2018-01-29 | A kind of preparation process of silastic press key |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108262904A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109732819A (en) * | 2018-12-13 | 2019-05-10 | 四川省胜发电子科技有限公司 | A kind of preparation method of calculator silica gel keycap |
| CN111849166A (en) * | 2020-05-29 | 2020-10-30 | 南京林名鑫电子有限公司 | Silicone rubber key and preparation method thereof |
| CN114654644A (en) * | 2022-03-23 | 2022-06-24 | 深圳市粤强佳俊实业有限公司 | Production process of multicolor multi-specification silica gel key and silica gel key |
-
2018
- 2018-01-29 CN CN201810083792.1A patent/CN108262904A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109732819A (en) * | 2018-12-13 | 2019-05-10 | 四川省胜发电子科技有限公司 | A kind of preparation method of calculator silica gel keycap |
| CN111849166A (en) * | 2020-05-29 | 2020-10-30 | 南京林名鑫电子有限公司 | Silicone rubber key and preparation method thereof |
| CN114654644A (en) * | 2022-03-23 | 2022-06-24 | 深圳市粤强佳俊实业有限公司 | Production process of multicolor multi-specification silica gel key and silica gel key |
| CN114654644B (en) * | 2022-03-23 | 2024-07-16 | 深圳市粤强佳俊实业有限公司 | Multicolor multi-specification silica gel key production process and silica gel key |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180710 |