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:
through reasonable adjustment of various parameters of mold water cooling, combined with real-time monitoring and analysis of product quality, and continuous optimization and adjustment, the quality of wood-plastic products can be effectively controlled.
A:Choose the solenoid valve of the plastic extruder, to consider the economy, do not ignore the quality. In terms of safety, suitable ones are selected according to the working conditions, such as waterproof, explosion-proof, etc. Reliability Normally closed or normally open depending on working duration and frequency. In terms of applicability, pay attention to media, temperature, viscosity, pressure difference, etc., including cleanliness, pipe diameter, etc., considering the influence of ambient temperature and power supply.
