Acme screw thread is to ask for a key component in the movement precise movement, the main use of high-quality alloy steel processing trapezoidal screw manufacturing, heat treatment process to ensure its excellent mechanical properties cold rolled trapezoidal screw in the manufacturing process, coarse and fine separate processes, effectively ensuring a reasonable distribution of the stress components, the key process in the heated workshop process, a stable temperature, to ensure that all indicators meet the national standard high-precision screw JB / T 2886-1992 Machine acme screw, nut technical conditions of acceptance standards. Keystone Ball accuracy class and acceptance criteria: R logo screw, right-handed screw is generally not marked. 7 screw - trapezoidal screw drive for precise custom, precision screw trapezoidal screw lathe, Exon grinder, surface grinder feed exercise. Process quality standards a trapezoidal screw, trapezoidal screw material is pulled through a die to a desired light diameter size, the secondary cold-drawn to form a surface hardness (0.5 mm deep) reached (18 ° -21 °). Second, the implementation of the standard trapezoidal screw through to. Third, the trapezoidal screw cold rolling is carried out after rolling straight raw, straight from rolling, and the surface hardness (0.5 mm deep) reached 22 °. Fourth, hard chrome trapezoidal screw, polishing, straightening after leaving the factory. Fifth, the trapezoidal screw are trapezoidal screw according to customer requirements customized, Korea and Taiwan transmission machinery (certified), Zengcheng City trapezoidal screw provided by Transmission Machinery Co., Korea and Taiwan. Dongguan City, South Korea Taiwan Transmission Machinery Co., Ltd. (www.dghantai.com) is an industry leader in Dongguan, Guangdong, machine tool accessories, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Korea and Taiwan transmission machinery leadership with the staff warmly welcome all inquiries negotiations, Korea and Taiwan to create a better future transmission machinery.