Commutator Phenolic Plastic

Model 7601-5B is a thermoset phenolic molding material intended for components used in commutator-related assemblies. It supports injection molding and transfer molding.

These molded parts may require structural support, electrical insulation, dimensional stability, heat resistance, and flame performance. The material's flowability can be matched with component dimensions, outlines, hole positions, detailed structures, and mold conditions.

Customers may submit technical drawings or physical prototypes before sample development. Material selection can then consider the finished-part function, molding method, structural requirements, and working environment.

The supplied source contains major differences between the main description and the product parameter table. These differences must be resolved before Commutator Phenolic Plastic is published with a final technical specification or approved for bulk production.

The main product description records a flexural strength of at least 80 MPa and a tensile stress at break of at least 50 MPa. It also records a notched Charpy impact strength of at least 1.3 kJ/m² and an unnotched Charpy impact strength of at least 5.0 kJ/m².

The supplied product parameter table instead records a flexural strength of at least 170 MPa and a tensile stress at break of at least 80 MPa.

Both sets of values come from the supplied material. Neither set has been independently selected or corrected in this description.

The final mechanical values should be confirmed through the approved technical data, production record, or sample testing before quotation and publication.

The main description states a heat deflection temperature under load, Ti 1.8, of at least 160°C. The product parameter table states a heat deflection temperature of at least 200°C.

Both sources record a UL94 V-0 flammability rating and a surface resistivity of at least 10¹⁰ Ω. The main description also gives a dielectric loss factor at 100 Hz of no more than 0.10.

The main description records a molding shrinkage range of 0.5% to 0.9%, water absorption of no more than 100 mg, and density between 1.40 and 1.50.

The product parameter table instead records a shrinkage range of 0.2% to 0.5%, water absorption of no more than 100 mg, and density between 1.60 and 1.70.

These conflicting thermal and physical values should remain clearly identified until the approved product specification is confirmed.

Zhejiang Naso Synthesis Co., Ltd. can develop samples according to technical drawings or physical prototypes. An automatic batching system and a DCS automated control system are used to manage material ratios and key production parameters.

The minimum order quantity is 1,000 kg. Samples are available before bulk production, and standard production normally requires approximately 7 days.

Quality personnel monitor manufacturing and complete a full inspection before packaging. Third-party inspection can also be accepted.

After delivery, technical communication can be provided for storage, molding, and application questions. Relevant after-sales issues can receive a response within 12 hours.

Commutator Phenolic Plastic should only be commercially released after all conflicting data has been reviewed and approved.

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