A: Rubber compounding is the “source” of rubber product quality, and the ratio accuracy of raw materials directly determines the final performance of rubber strips/seals. Automatic weighing & batching relies on PLC intelligent control + high-precision load cells (accuracy ≤±0.1g) to realize precise batching of raw rubber, additives, and vulcanizing agents. Compared with manual batching, it eliminates human error (performance deviation of rubber compound ≤±3%), improves batching efficiency by 3-5 times, and records all data in real time for traceability—fully meeting the quality management requirements of IATF 16949/ISO 9001.

A: For corrosive scenarios (chemical reaction kettles, electroplating tanks, acid-base pipelines), the core is to select materials with strong chemical stability:

• General strong corrosion (most acids/alkalis): FKM (fluororubber, balanced performance and cost);
• Extreme strong corrosion (high-concentration acids/alkalis/all solvents): FFKM (perfluoroelastomer, all-round corrosion resistance);
• Direct contact with corrosive media: PTFE composite rubber (PTFE coating + rubber core, double anti-corrosion).

Structurally, avoid hollow designs—use solid/closed-cell foam structures to prevent corrosive media from entering the interior, and the surface can be coated with anti-corrosion coating for secondary protection.

A: Based on IATF 16949/ISO 9001, the full-process quality control of rubber products is divided into 5 core steps:

1. Incoming raw material inspection: Test Mooney viscosity/purity of raw rubber/additives, reject unqualified materials;
2. In-process sampling: Sample every 20 minutes during production, test hardness/dimensional accuracy, adjust parameters in real time;
3. 100% finished product inspection: Check appearance/dimensions/sealing performance of all products;
4. Batch sampling test: Randomly sample each batch (5000m/batch) to test aging/oil resistance/mechanical properties, issue test reports;
5. Data traceability: Record all inspection/production data in real time, store for more than 3 years, and realize one-click query of the whole production chain.

A: Industrial rubber strips are mainly matched by equipment protection requirements + installation structure, the core scheme is:

• Industrial doors/ordinary electrical cabinets: IP54, flame-retardant EPDM, card slot/back glue installation (easy to replace);
• PLC/inverter cabinets/outdoor communication cabinets: IP65, high-grade flame-retardant EPDM, embedded card slot installation (firm sealing);
• Machine tools/chemical equipment: IP67, wear-resistant/anti-corrosion materials (CR/FKM), bolt fixed installation (anti-vibration/friction).

The key is to ensure the rubber strip is fully compressed during installation (compression rate 20%-30%) to achieve the designed IP grade.

A: The correct installation of rubber strips depends on the installation method, with 3 key points for common types:

1. Card slot type: Clean the slot first (no dust/oil), press the rubber strip into the slot step by step to ensure no warping/air bubbles, and cut off excess material at the corner (match injection jointing for seamless connection);
2. Back glue type: Tear off the protective film and press firmly (temperature ≥15℃ for better adhesion), avoid repeated tearing/pasting (damage the glue layer), and fix with double-sided tape for auxiliary at the corner;
3. Bolt fixed type: Evenly apply the bolt force, avoid over-tightening (cause rubber deformation/cracking), and add a gasket between the bolt and rubber strip (prevent wear).

After installation, check the fitting degree—ensure full contact with the equipment/body without gaps.