Plastic hand board, the principle of large-scale complex mold

The complex mold refers to the use of the original sample plate, the silicone mold is made under vacuum, and the PU material is poured under vacuum to clone the same copy as the original sample.

The complex mold is a hand piece processing method. The plastic hand model plays a key role in the product development stage. It is used to verify whether the product design has problems. In our hand industry, the complex mold is one of the hand processing methods. It is mainly used for small-volume hand-made board production. Its advantages are fast time, low cost and very good market competitive advantage. The materials used for the multi-model hand board are ABS, PP, PC, acrylic, soft rubber and silicone rubber. Introduce what the production process of the complex model is:

1. Before making the silicone mold, you need to make an original version, which can be made by cnc processing or 3D printing. Start to make the silicone mold, and the silica gel and the curing agent are evenly mixed. The appearance of the mold silicone is a flowing liquid, and the component A is Silica gel, component B is a curing agent.

2. Vacuuming and bubble treatment: After the silica gel and the curing agent are evenly stirred, the vacuum is exhausted, and the vacuuming time should not be too long. Under normal circumstances, do not exceed 10 minutes, and the vacuuming time is too long. Curing, resulting in a cross-linking reaction, makes the silica gel piece by piece, unable to be painted or perfused.

3. Brushing or operation process: evacuate the silica gel through the air bubbles to apply or infuse. Pour on the product (Note: The product or model to be copied before pouring the silica must be a release agent or release agent). Then apply the silica gel on the product, and the brushing must be uniform. After 30 minutes, a layer of gauze fiber weft cloth is applied to increase the strength and tension of the silica gel.

4. The hand model plays a key role in the product development phase to verify whether the product design has problems. In our hand industry, the complex mold is one of the hand processing methods, mainly for small batch production. The advantages are fast time, low cost, and very good market competitive advantage. The materials for the multi-model hand board are ABS, PP, PC, acrylic, soft rubber and silicone rubber, etc. :

Before making the silicone mold, you need to make an original version, which can be made by cnc processing or 3D printing. Start to make the silicone mold, and the silica gel and the curing agent are evenly mixed. The appearance of the mold silicone is a flowing liquid, and the component A is silica gel. Component B is a curing agent.

Vacuum treatment: After the silica gel and the curing agent are evenly stirred, the vacuum is exhausted. The vacuuming time should not be too long. Under normal circumstances, do not exceed 10 minutes. The vacuuming time is too long, and the silica gel is solidified immediately. A cross-linking reaction was generated, which made the silica gel piece by piece and could not be painted or poured.

Brushing or handling: Drain the silicone that has been bubbled through the air to paint or infuse it. Pour on the product (Note: The product or model to be copied before pouring the silica must be a release agent or release agent). Then apply the silica gel on the product, and the brushing must be uniform. After 30 minutes, a layer of gauze fiber weft cloth is applied to increase the strength and tension of the silica gel.

The production of the outer mold: the general method and materials are used to surround the mold, surrounded by rubber sheets or wooden boards, and the mold cabinet can be filled with gypsum. The other method is to apply a resin coating method to coat a layer of resin. Just paste a layer of fiberglass cloth, then brush and paste, and repeat the mold or two or three layers to complete the mold.

5. The operation method of filling or pouring mold: filling or pouring mold is used for relatively smooth or simple products. No mold line saves time and labor, it means that the product or model you want to copy will be vacuumed. The silica gel is directly poured into the product. After the silica gel is dried and formed, the product is taken out. (Note: The casting mold is generally made of a softer silica gel, so that the demoulding is easier and does not damage the product inside the silicone mold).

Shenzhen Xunda Shengshou Co., Ltd. focuses on hand-made plate production for more than 20 years, and all kinds of CNCN machining centers total more than 20 sets, high-precision CNC machining centers to ensure accurate assembly of products. Our company has rich experience in processing traditional hand plates such as metal, plastic and soft rubber, and independently develops carbon fiber hand board processing method to make full carbon fiber hand board, giving full play to the advantages of plastic, metal and carbon fiber composite materials to meet customers' various materials and solutions. , please contact us for details!