"SUS631-WPC" is a spring material with high strength and excellent heat resistance.
The material used is "spring stainless steel wire SUS631-WPC." "SUS631-WPC" is a higher strength material compared to the general-purpose spring material "SUS304-WPB" and is often used in applications requiring heat resistance. The heat resistance temperature (permissible use temperature) is approximately 340 degrees for "SUS631-WPC" and about 290 degrees for "SUS304-WPB." "SUS631-WPC" is a precipitation-hardened material that acquires the required strength and heat resistance through heat treatment after spring forming. This heat treatment is referred to as precipitation hardening or aging treatment, with a heat treatment temperature of 470 degrees ± 10 degrees and a heat treatment time of 60 minutes as specified by JIS standards. This spring is called a "double torsion spring," and it has a shape where two torsion coil springs are connected. The left and right coils operate independently, so calculations for moments and lifespan are generally performed separately for each side. (In cases where the dimensions and usage are exactly the same, calculations can be completed for just one side.)
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If you have any issues with springs, please feel free to consult us. Our technical staff will respond carefully. Tsuruoka Spring Co., Ltd. Technical Contact: Ujiie Phone: 0235-22-0407 FAX: 0235-22-0546 Email: web@tohj.com We also support web meetings.
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Tsuruga Spring Co., Ltd. is a spring manufacturer located in Tsuruoka City, Yamagata Prefecture. We specialize in the design and manufacturing of coil springs, as well as wire forming processing. 1) Our strength lies in our ability to respond quickly from design to prototyping. Are you facing issues such as springs breaking, deforming, or being weak? Our technical staff will respond carefully, so please feel free to consult with us. It's okay even if you don't have drawings. 2) We can accommodate a wide range of wire thicknesses from 0.1mm to 10.0mm. We stock piano wire, stainless steel wire for springs, oil-tempered wire, and phosphor bronze wire. We can also handle special spring materials that are outside JIS standards, such as Herculite and SWIC. Additionally, we can accommodate wire diameters exceeding 10mm through outsourcing. 3) We accept orders from one piece to tens of thousands of pieces. Technical Contact: Ujiie Phone: 0235-22-0407 FAX: 0235-22-0546 Email: web@tohj.com Tsuruga Spring Co., Ltd. 〒997-0011 3-10-25 Takarada, Tsuruoka City, Yamagata Prefecture