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A:Extrusion molding of plastic profiles is to extrude the molten plastic through the extruder, and then through a specific mold and setting device, so that it is cooled and solidified into a plastic profile with a specific shape and size. This process requires precise control of parameters such as temperature and speed to ensure product quality. Widely used in building materials, automobiles, electronics and other fields.
A:There are many difficulties in the manufacture of wood-plastic composite hollow veneer fence profiles, such as poor material compatibility resulting in poor combination, difficult to control the hollow structure during extrusion, complex mold design and high precision requirements, surface veneer treatment process is difficult to achieve ideal results. The solution includes optimization of material formulation and pretreatment, advanced temperature and pressure control system and online monitoring, optimization of molds with simulation technology, selection of finishing materials and pretreatment, etc., to improve product quality and production efficiency.
A:Select the extrusion mold to produce a specific shape of PVC profiles, to consider profile shape size and tolerance, mold material and manufacturing process, flow and cooling design, experience and technical support, cost budget. We should cooperate with the supplier to test and debug the mold, and integrate multiple factors to ensure that the mold can meet the production needs and ensure the quality and efficiency of the profile.
n actual applications, the corresponding national standards, industry standards or enterprise standards should be consulted according to the specific type of wood plastic products to determine the accurate strength standard requirements. In addition, these standards may also include other performance indicators, such as dimensional stability, water absorption, Shore hardness, surface bonding strength, paint film adhesion, etc.
The reasons for surface defects in wood-plastic products during the production process may be: 1. Raw material quality problems: 2. Improper formula ratio: 3. Improper processing temperature control: 4. Unreasonable extrusion or injection speed: 5. Mold problems: 6. Uneven cooling: 7. Uneven mixing: 8. Environmental factors: 9. Unstable process parameters:
