In the analytical biochemical industry, the burrs in the holes of PEEK parts have a great impact on the life of analytical testing instruments and test results. They can affect the flow rate and flow of the liquid, or cause pipeline blockage and increased pressure, causing certain instrument accessories to be damaged due to excessive pressure.

Many PEEK valve head products are black in appearance, so the detection and removal of “burrs” is a challenge for production workers and inspectors.

Improvement plan 

Colleagues from the Analytical Instrument Division and Quality Assurance Department worked together to formulate and implement the following plans for each department, reducing the occurrence of burrs in the holes of PEEK valve head products and making significant progress in inspection and detection. It prevents the risk of products with burrs flowing out and reduces the risk of failure during customer use.

Production

1. Strictly monitor the life of the tools on the processing machine to ensure that the tools are sharp and reduce burrs caused by tool wear. In addition, custom-made tools with special angles can further reduce burrs.

2. Early stage of production: Use 3D simulation to check the hole position and reflect it in the control program. During processing: Strictly control the depth of the cross hole to avoid burrs caused by being too shallow or too deep.

3. Use the process of first spotting holes and then punching holes, and optimize the processing sequence and positioning tooling to ensure that the intersection of holes is not misaligned and reduce burrs.

4. After machining, use abrasive flow to remove burrs first, and then use dry ice deburring machine to remove burrs again. Make sure that the cross hole position is completely free of burrs.

test

The microscope adds side light detection on the basis of single light source, which can clearly find the size and position of burrs. Every hole of every valve head must be inspected to ensure that every product sent to customers is burr-free.

The analytical and testing instrument industry has relatively high quality requirements for PEEK products, which is a challenge for production and inspection, and also a way to improve self-skills. Every process must be carefully optimized to improve product quality, and contribute to winning more customers and a larger market in the future!

Junhua PEEK

Junhua PEEK focuses on the application research and development and production of high-performance polymer resins, profiles and finished parts such as PEEK (polyetheretherketone) and PI (polyimide).

The high-purity, corrosion-resistant, and low-dissolution PEEK high-performance plastic parts developed by our company have been widely used in analytical chromatography instruments, preparative and semi-preparative chromatography instruments, protein purification equipment, IVD instruments, sample pretreatment equipment, pharmaceutical and environmental monitoring equipment and other related equipment.

We are very willing to have the opportunity to participate in the development process of new products of PEEK (polyetheretherketone) and PI (polyimide) high-performance plastic parts for customers. Based on our accumulated experience in the application cases of PEEK (polyetheretherketone), PI (polyimide) and other high-performance special plastic parts in the analytical biochemical industry, we put forward our suggestions on material selection, cost accounting, product design, molding process selection, mold design and manufacturing, and machining considerations to help you quickly complete the product design, manufacturing and procurement process.