Silicone products mean silicone rubber products. The silicone production methods include silicone compression molding production and injection molding production. They are used to process different kinds of silicone products. Compression molding production used to process the Solid Silicone. And the injection molding production used to process the Liquid Silicone Rubber.
Mold Tool prepare
Before processing the silicone products, we should have a mold tool. There are different kinds of mold tools.
Mold tool design
Before processing the silicone products, we should confirm the mold tool depends on the customer’s demand. We have our own CNC workshop to process the customized mold. That can respond to customers quickly, provide professional suggestions, and keep well commercial confidentiality.
We need the 3D CAD files for mold making. When you have completed mold drawings or 3D models, please send us file-type in Solidworks, Iges or Step formats. Our experienced engineers will review your project and make certain recommendations. We should ensure,
- The mold can realize bulk production for long-term service and easy maintenance at a low cost.
- Few material wastages. The mechanical pressure will deform the mold shape, especially expressed in the salient joint line. We have the standard inspection on production control and will maintain on the mold timely.
- Free mold maintenance. Before the order, we have skillful mold suggestions and clear mold offer detail, that will make the service clear and no future worry. Some mold is free maintained for all lifetime.
Also, we will suggest the suit molds material to you. The tool material including the Aluminum, Copper, and High-hardness Steel.
- When making the new product samples, we will suggest using the cost Aluminum to confirm the samples.
- Copper mold tools can make thousands of pieces of products. Standard inspection and necessary timely maintenance will increase the mold service time and reduce the cost.
- High-hardness Stainless steel can process a large number of silicone products at one time. The mold is much expensive than copper, but it’s more precise to save material and high-efficiency to low the production cost.
Produce Silicone Products
Silicone Material Mix and Mill
Before compression molding, We will choose the suit silicone raw material, mix them together with color pigment, filler, and vulcanizing agent. Then process the mixer in the mixing mill machine by the rollers completely. The complete mixing is an essential condition for the curing of silicone during molding production.
Before the production, we will confirm the molding tool, silicone product shape & net weight. Then we will calculate the net weight of the material, to use in each mold cavity. Now we will cut the silicone mixture to the suitable shape and precise net weight. Less material will cause the product defect. Excess material will case too much waste.
Place the silicone material into the mold
Place each piece of silicone material in each cavity of the compression mold tool. The precisely cut silicone material will be carefully placed into each cavity of the tool mold to ensure enough silicone materials fill into the cavities. Then we go on with compression molding production.
silicone compression molding production
Then we will set the silicone mold in the compression molding machine and turn on the machine. The high-temperature and pressure will catalyze the vulcanizing molding. The silicone material will be cured during the vulcanizing molding. Then come out well-shaped silicone products.
Use the blower gun can easily demolding the silicone products from the mold. And just now we suggest we will cut little more silicone material to avoid defect products. So the shaped silicone components will come out together with excess material which we called flash. Take the silicone product with flash out of mold carefully, and clean the mold by blower guns for the next molding process.
Silicone flash is a thin flap of material at the parting line at the mold splits. In the high-temperature and high pressure of the silicone vulcanizing machine, the silicone will have low viscosity when heating and curing. The pressurized silicone material will flow to every space in the cavity of the tool mold.
Silicone flash is the waste material during the compression molding production. It can be minimized with optimal designs, precision tooling, and accurate material weight during vulcanizer molding production. Flash will be removed by hand and reuse.
All silicone parts will have a flash line in the mold tool, which creates a small amount of silicone flash (less than 0.3mm) remaining, we call it parting line. Many clients will have a high demand for product appearance. We will suggest better molds optimize, high mechanical strength tool material, and strict product & tooling inspection
We are professional manufacturer to produce high-quality silicone rubber products, We can provide the one-stop service for mold tool design and process, silicone product produces. Welcome to your inquiry. And follows we share some perfect Silicone Rubber products: