Dimension Tolerance Grades for Plastic Products

          In the plastic part manufacturing process,dimensional control is a key factor in ensuring product quality and functionality,while cost control is an important aspect of maintaining the competitiveness of the enterprise.As a plastic part manufacturer,WELTECHNO will achieve dimensional control and cost optimization through the following aspects:

        •Part Structural Design:

      •Simplified Design:By simplifying the part structure and reducing complex geometric shapes and features,the difficulty and cost of mold manufacturing can be reduced,while also simplifying the molding process to minimize dimensional deviations.

       •Reasonable Tolerance Allocation:During the design phase,tolerances are allocated reasonably based on the functional requirements of the part.Key dimensions are strictly controlled,while non-critical dimensions can be appropriately relaxed to balance cost and quality.

       •Material Selection:

      •Shrinkage Rate Control:Select plastic materials with a stable shrinkage rate to reduce dimensional changes after molding and improve dimensional stability.

      •Cost-Benefit Analysis:Choose materials with the highest cost-benefit ratio that meet performance requirements to control material costs.

      •Mold Design:

      •High-Precision Molds:Use high-precision mold manufacturing techniques,such as CNC machining and EDM,to ensure the precision of the mold,thereby controlling the dimensions of the parts.

      •Multi-Cavity Molds:Design multi-cavity molds to increase production efficiency,reduce the cost per part,and ensure dimensional consistency by replicating consistent mold cavities.

      •Molding Control:

     •Temperature Control:Precisely control the temperature of the mold and material to reduce dimensional deviations caused by temperature changes.

     •Pressure Control:Reasonably set injection pressure and holding pressure to ensure the material is fully filled in the mold and reduce dimensional changes caused by shrinkage.

     •Cooling System:Design an effective cooling system to ensure uniform cooling of the parts and reduce dimensional deviations caused by uneven cooling.

      •Process Monitoring and Quality Control:

      •Real-Time Monitoring:Implement real-time monitoring during the production process,such as using sensors to monitor mold temperature and pressure,to ensure the stability of molding conditions.

     •Automated Inspection:Use automated quality inspection equipment,such as CMM,to quickly and accurately detect part dimensions,and promptly identify and correct deviations.

     •Cost Management:

     •Production Efficiency Improvement:Improve production efficiency by optimizing production processes and reducing downtime,thereby reducing unit costs.

     •Material Utilization:Optimize material utilization to reduce waste and material waste,thereby reducing material costs.

•Long-Term Partnerships:Establish long-term partnerships with suppliers to obtain more favorable material prices and better services.

      •Continuous Improvement:

      •Feedback Loop:Establish a feedback loop from production to quality inspection,continuously collect data,analyze problems,and continuously improve the production process.

      •Technology Updates:Invest in new technologies and equipment to improve production efficiency and product quality while reducing costs.

Through the above measures,WELTECHNO can ensure precise control of plastic part dimensions while effectively managing costs and maintaining market competitiveness.