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案例頻道★北京廣利核系統(tǒng)工程有限公司 張偉，單士起，孫洪濤
摘要：針對核電站機(jī)柜壓鉚螺釘在施加緊固力矩時背面出現(xiàn)“凹陷”缺陷的問題，對壓鉚螺釘?shù)木o固力矩進(jìn)行了試驗(yàn)研究。根據(jù)常用強(qiáng)度等級螺釘?shù)睦碚撚?jì)算緊固力矩和壓鉚螺釘手冊規(guī)定緊固力矩，對常用規(guī)格M3、M4、M5、M6壓鉚螺釘分別壓鉚在常用厚度為1.5mm、2.0mm、3.0mm冷軋鋼板進(jìn)行試驗(yàn)，最后結(jié)合試驗(yàn)數(shù)據(jù)給出針對不同厚度鋼板、不同規(guī)格壓鉚螺釘?shù)木o固力矩推薦值。該推薦值可有效防松，可以滿足法規(guī)對核電站機(jī)柜的抗震要求，目前已在核電站相關(guān)機(jī)柜和盤臺中應(yīng)用。
關(guān)鍵詞：核電站；機(jī)柜；壓鉚螺釘；緊固力矩
Abstract: This paper mainly describes the research on tightening torque of pressure riveting screws for nuclear power plant cabinets. According to theoretical tightening torque of ordinary screws and allowable tightening torque of pressure riveting screws, the test is carried out for pressure riveting screws of M3, M4, M5 and M6, which are riveted to 1.5mm, 2.0mm and 3mm thick steel plates. The result is a table of recommended tightening torques for different pressure riveting screws riveted to different thick steel plates. The screws with recommended tightening torques can be fastened reliably, and have been validated to meet the requirements of nuclear power plants by seismic test. The recommended tightening torques have been applied in some projects of nuclear power plants.
Key words: Nuclear power plant; Cabinet; Pressure riveting screw; Tightening torque
在線預(yù)覽：
核電站機(jī)柜壓鉚螺釘緊固力矩的研究.pdf
摘自《自動化博覽》2021年9月刊
北京市公安局海淀分局備案號：11010802023656號