{"id":3393,"date":"2021-05-10T19:44:22","date_gmt":"2021-05-10T17:44:22","guid":{"rendered":"http:\/\/hybster.com\/documentation\/conception-plastique-comment-assembler-des-pieces-copy\/"},"modified":"2026-03-24T16:16:02","modified_gmt":"2026-03-24T15:16:02","slug":"materials-injection-bi-material","status":"publish","type":"documentation","link":"https:\/\/hybster.com\/en\/documentation\/materials-injection-bi-material\/","title":{"rendered":"Plastic Design - Which materials are suitable for bi-injection?"},"content":{"rendered":"
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L'bi-material plastic injection<\/a> also known as bi-injection, is a manufacturing technique that consists of combine two different polymers or two different colours in one plastic part.<\/strong>\u00a0<\/p>\r\n\r\n\r\n\r\n

For example, a combination of soft and hard materials, such as your toothbrush that is made with a soft handle.<\/p>\r\n<\/blockquote>\r\n\r\n\r\n\r\n

Pourquoi utiliser l’injection bi mati\u00e8re ?<\/h2>\r\n\r\n\r\n\r\n

The design of a high-performance product<\/a> involves a design approach for manufacturing and assembly<\/strong>. This determines the future industrial life of the product. The challenge at this stage is to reduce or optimize the assembly and manufacturing phases.\u00a0<\/p>\r\n\r\n\r\n\r\n

Bi-material injection allows the elimination of the assembly phase or the use of direct labour for the assembly of 2 different materials. This means a cycle time<\/strong> manufacturing shorter<\/strong>a better quality control<\/strong> of the product, and a economy<\/strong> on the manufacturing cost.<\/p>\r\n\r\n\r\n\r\n

To give you a clear idea of the benefits, here is a list of reasons why bi-material injection molding (bi-material injection) might be the right technology for a part or product:<\/p>\r\n\r\n\r\n\r\n