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直径1550毫米的大型球体,是长输管线用1米通径气—液联动带自动紧急关闭球阀中的主要零件。为了满足使用温度-20°～+80℃,压力80公斤·力/厘米~2的净化天然气介质长期使用条件。要求球体表面必须具有良好的抗腐蚀性和耐磨性。一般是球体表面镀硬铬处理。但是,自贡高压阀门厂限于电镀设备条件及省内无处协作,再加上用户反映镀硬铬件在使用中常发现点腐蚀和剥落等严重缺陷,影响使用寿命。为此,我们根据这种实际
Large diameter of 1550 mm ball, is long-distance pipeline with 1 meter diameter gas-liquid linkage with automatic emergency shut-off valve in the main parts. In order to meet the use of temperature -20 ° ~ +80 ℃, the pressure of 80 kg · force / cm ~ 2 long-term use of purified natural gas media conditions. Requires the ball surface must have good corrosion resistance and wear resistance. The ball is generally hard chromium plated surface treatment. However, Zigong high pressure valve factory is limited to plating equipment conditions and the lack of collaboration in the province, coupled with the user reflects the hard chrome plated pieces often found in the use of pitting and peeling and other serious shortcomings affect the service life. To this end, we based on this reality