CN103507267B - A kind of firm silicone rubber compression molding method - Google Patents
A kind of firm silicone rubber compression molding method Download PDFInfo
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- CN103507267B CN103507267B CN201310485945.2A CN201310485945A CN103507267B CN 103507267 B CN103507267 B CN 103507267B CN 201310485945 A CN201310485945 A CN 201310485945A CN 103507267 B CN103507267 B CN 103507267B
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Abstract
The invention discloses a kind of firm silicone rubber compression molding method, include the following step: 1) make mould, according to the shape of product, make mould with electrocasting; 2) prepare raw material, this raw material is the semisolid silicon rubber of refining; 3) first one-step forming, according to the size of mould, puts into the die cavity of above-mentioned mould, carries out hot pressing after matched moulds, make it tentatively shape by the semisolid silicon rubber refined; 4) open described mould, take out silicon rubber semi-finished product; 5) prune, the silicon rubber semi-finished product after preliminary sizing are pruned, removes burr; 6) solidify finished product, described silicon rubber semi-finished product are placed in baking oven and are heating and curing, obtain final finished product.Forming method of the present invention is simple to operate, and production process is continuously shaped, saves to vacuumize, take out the steps such as material, baking, economize energy, reduces energy consumption more than more than 30%.
Description
Technical field
The present invention relates to silicon rubber production method technical field, be specifically related to a kind of firm silicone rubber compression molding method.
Background technology
Existing have brightness on complex contour, the surfaces such as class material, Art Stone such as high rigidity cosmetic sheet, resin, cement such as doing epoxy resin, and color requires in the manufacture process of product, and all adopt fluid die glue to make mould, the method exists Making mold complexity.In the forming method of silicon rubber especially in the prior art, mould is inserted in a chamber, air in chamber is extracted, and the described mould that repeatedly pressurizes, air is sent in described chamber, heat described mould, also need repeatedly to repeat above-mentioned several step time necessary, thus there is the various and shortcoming such as with high costs of operation in existing production technology.
Summary of the invention
The present invention is intended to overcome the deficiencies in the prior art, provides the firm silicone rubber compression molding method that a kind of technique is simple, cost is low.
Technical scheme of the present invention is achieved in that
A kind of firm silicone rubber compression molding method, includes the following step: 1) make mould, according to the shape of product, make mould with electrocasting; 2) prepare raw material, this raw material is the semisolid silicon rubber of refining; 3) first one-step forming, according to the size of mould, puts into the die cavity of above-mentioned mould, carries out hot pressing after matched moulds, make it tentatively shape by the semisolid silicon rubber refined; 4) open described mould, take out silicon rubber semi-finished product; 5) prune, the silicon rubber semi-finished product after preliminary sizing are pruned, removes burr; 6) solidify finished product, described silicon rubber semi-finished product are placed in baking oven and are heating and curing, obtain final finished product.
In the present invention, in described step 2, adopt methyl ethylene long-chain siloxanes to do material of main part, taking containing hydrogen silicone oil as main body crosslinking agent, is catalyst with platinum complex, refines out semisolid silicon rubber.
In the present invention, also comprise after described step 1 and processing with the inner surface of electro-erosion process to described mould, make mould inner surface reach requirement.
In the present invention, in described step 3, the pressure of the mold pressing after matched moulds is at least 100 tons; The temperature wherein heated is: patrix 150-180 DEG C; Counterdie 120-180 DEG C; Hot pressing time is 1-5min.
In the present invention, described oven temperature is between 180 ~ 220 DEG C, and hardening time is between 1 ~ 3h.
Compared to prior art, beneficial effect of the present invention is:
1, the present invention adopts electrocasting, and can save die sinking personnel in a large number, single efficiency improves more than ten times;
2, the present invention significantly reduces production cost, and single product mould takes decline more than 20%;
3, the present invention adopts base vinyl long-chain siloxanes to do material of main part, and taking containing hydrogen silicone oil as main body crosslinking agent, is catalyst with platinum complex, refine out semisolid silicon rubber, continuously shaped, save and vacuumize, take out the steps such as material, baking, economize energy, reduces energy consumption more than more than 30%.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of firm silicone rubber compression molding method of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
A kind of firm silicone rubber compression molding method of the present invention, includes the following step:
The first step, makes mould.The hot-press forming device that heat pressing and molding mold in the present invention adopts, the shape of the product processed as required adopts electrocasting to make mould, and mould comprises upper die and lower die; Then adopt the inner surface of electro-erosion process to mould to process, make the surface in mould reach requirement.
Second step, prepares raw material, and this raw material is the semisolid silicon rubber of refining, and adopt methyl ethylene long-chain siloxanes to do material of main part, taking containing hydrogen silicone oil as main body crosslinking agent, is catalyst with platinum complex, refines out semisolid silicon rubber.
3rd step, according to the size of dies cavity, the semisolid silicon rubber refined is put into the die cavity of above-mentioned mould, carry out hot pressing after matched moulds, the pressure of the mold pressing after matched moulds is at least 100 tons; The temperature wherein heated is: patrix 150-180 DEG C, preferably 160 DEG C; Counterdie 120-180 DEG C; Hot pressing time is 1-5min, makes solid silicone rubber under hot pressing condition, in mold cavity, is tentatively fixed to silicon rubber semi-finished product.After heating, counterdie is placed on a cooling device, has the cooling fluid (be generally water) of temperature between 5 DEG C to 20 DEG C to circulate in cooling device, silicon rubber finished product is cooled to room temperature.
4th step, opens above-mentioned mould, takes out silicon rubber semi-finished product.
5th step, prunes, and prunes, remove burr to the silicon rubber semi-finished product after preliminary sizing;
6th step, solidification finished product, be placed in baking oven by the silicon rubber semi-finished product of above-mentioned pruning and be heating and curing, oven temperature is between 180 ~ 220 DEG C, and hardening time is between 1 ~ 3h, can obtain the finished product of expecting.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. a firm silicone rubber compression molding method, is characterized in that, is made up of the following step:
1) make mould, according to the shape of product, make mould with electrocasting;
2) prepare raw material, this raw material is the semisolid silicon rubber of refining, and adopt methyl ethylene long-chain siloxanes to do material of main part, taking containing hydrogen silicone oil as main body crosslinking agent, is catalyst with platinum complex, refines out semisolid silicon rubber;
3) first one-step forming, according to the size of mould, puts into the die cavity of above-mentioned mould, carries out hot pressing after matched moulds, make it tentatively shape by the semisolid silicon rubber refined;
4) open described mould, take out silicon rubber semi-finished product;
5) prune, the silicon rubber semi-finished product after preliminary sizing are pruned, removes burr;
6) solidify finished product, described silicon rubber semi-finished product are placed in baking oven and are heating and curing, obtain final finished product.
2. a kind of firm silicone rubber compression molding method according to claim 1, is characterized in that, also comprises and processing with the inner surface of electro-erosion process to described mould, make mould inner surface reach requirement after described step 1.
3. a kind of firm silicone rubber compression molding method according to claim 1, is characterized in that, in described step 3, the pressure of the mold pressing after matched moulds is at least 100 tons; The temperature wherein heated is: patrix 150-180 DEG C; Counterdie 120-180 DEG C; Hot pressing time is 1-5min.
4. a kind of firm silicone rubber compression molding method according to claim 1, is characterized in that, described oven temperature is between 180 ~ 220 DEG C, and hardening time is between 1 ~ 3h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310485945.2A CN103507267B (en) | 2013-10-16 | 2013-10-16 | A kind of firm silicone rubber compression molding method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310485945.2A CN103507267B (en) | 2013-10-16 | 2013-10-16 | A kind of firm silicone rubber compression molding method |
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| CN103507267A CN103507267A (en) | 2014-01-15 |
| CN103507267B true CN103507267B (en) | 2016-03-09 |
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| CN105118910B (en) * | 2015-08-06 | 2019-02-19 | 鸿利智汇集团股份有限公司 | The preparation method of LED die-bonding method, crystal-bonding adhesive and crystal-bonding adhesive |
| CN112848010A (en) * | 2021-01-29 | 2021-05-28 | 佛山道格科技有限公司 | Silica gel cup and preparation method thereof |
| CN113229581B (en) * | 2021-05-18 | 2023-02-03 | 青岛玖慕晶典饰品有限公司 | Production process of special-shaped jewelry and special-shaped jewelry |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1769350A (en) * | 2004-11-04 | 2006-05-10 | 上海橡胶制品研究所 | Silicon rubber membrane and its production method |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1769350A (en) * | 2004-11-04 | 2006-05-10 | 上海橡胶制品研究所 | Silicon rubber membrane and its production method |
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Address after: 526000 Lianhua Town Development Zone, Dinghu District, Guangdong City, Zhaoqing province (three sets of Liantang village, Deng Wutou) Patentee after: Guangdong Haoming silicone materials Co., Ltd Address before: 526000 Lianhua Town Development Zone, Dinghu District, Guangdong City, Zhaoqing province (three sets of Liantang village, Deng Wutou) Patentee before: ZHAOQING HOMEEN ORGANIC SILICON MATERIAL Co.,Ltd. |
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