Tungsten Carbide Dies for Food Processing Machinery

Extrusion molding is a process widely used in various field to create various products with various shapes, textures, and sizes. The extruder could get applied in plastics, rubber, food, petro-chemistry etc. Thus, the extrusion mold is a crucial component in this process, as it determines the final shape and characteristics of the extruded product.


1. Purpose of the Extrusion Mold:
An extrusion mold is a specially designed tool or die that shapes the food material as it is forced through it under pressure. The mold imparts the desired shape and texture to the extruded product, creating a consistent and uniform outcome.

Mold Design:
Extrusion molds for food applications are designed with specific demands to achieve the desired product shape. The mold's design includes elements such as cavities, channels, and openings that allow the raw material to flow through and take on the intended shape.

Product Maintenance:
Regular maintenance of extrusion molds is essential to ensure consistent product quality and to prevent issues like product defects, inconsistent shapes, and production downtime. Molds should be cleaned thoroughly between production runs to prevent cross-contamination and to maintain safety standards.

Mold Care and Cleaning:
Proper cleaning and care are crucial for maintaining the performance and longevity of extrusion molds. Any residue or buildup from previous production runs can affect the shape and quality of the extruded products. Molds need to be disassembled, cleaned, and reassembled according to manufacturer guidelines.

Wear and Replacement:
Over time, the repeated pressures and temperatures during the extrusion process can cause wear on the mold surfaces. This wear can lead to changes in product quality and consistency. Manufacturers need to monitor the condition of molds and replace them when necessary to maintain the desired product attributes.

Material:
Extrusion molds are typically made from food-grade materials, which are corrosion-resistant, durable, and capable of withstanding high pressure and temperature during the extrusion process. Stainless steel has become a common material choice due to its hygienic, durable, and abrasion-resistant properties.
Common materials for food-grade molds include 40Cr, 304, 316, 440C etc. Other materials frequently used for extrusion machine molds include 45 steel, Cr12MoV, 42CrMo, nitrided steel (38CrMoAl), 6542 (W6Mo5Cr4V2), SKD11 etc.

Customization:
Different products require different mold designs. We could offer customization options for extrusion molds, allowing producers to create unique shapes, textures, and sizes for their products. This flexibility enables the creation of a wide variety of products.