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BMC with compression moulding

Join Date: 2019-11-14

Bulk moulding compound (BMC), bulk moulding composite, or dough moulding compound (DMC), is a ready-to-mould, glass-fiber reinforced thermoset polymer material primarily used in compression moulding, as well as in injection moulding and transfer moulding.

BMC and SMC are similar in composition. But for BMC, firstly, it should be mixed the polyester resin and additives. After this step, it becomes a resin mixture, and then adds the filler. Next, reduce the mixing speed of the "premix" to prevent the glass fiber from cracking. If the material needs to be further concentrated, a thickener should be added. This material can be used for compression moulding and injection moulding.

What is the compression BMC moulding process of this “putty” BMC material? First of all, put a certain amount of prepared BMC material into the preheated BMC mould. Then close the mould at a certain speed, the material will flow under the pressure and fill the entire cavity. Then keep it at the required temperature and pressure for a certain time. When the physical and chemical processes have been completed to solidify, shape and achieve the best performance, we can open the BMC mould and take out the product. In the whole bmc moulding process, what directly affects the quality and accuracy of BMC products is the temperature. BMC mould can be divided into oil heating, electric heating, steam heating. No matter how demanding your products are, MDC has the ability to design and manufacture the BMC mould or BMC tooling.

As a China high-quality BMC mould company, MDC Mould has already manufactured a lot of BMC moulds and BMC products. So MDC have rich theoretical knowledge and production experience in BMC moulding field and can customize a complete set of BMC compression moulding line for you. BMC products of MDC cover a wide range of areas. For example, electrical industry and automobile industry, such as BMC taillight cover mould, BMC electrical box mould, BMC meter box mould and BMC manhole cover mould.etc.

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