5⼀8-18UNF英制螺纹 车削深度是多少?

2024-12-06 15:20:54
推荐回答(5个)
回答1:

1.411mm

UNF表示是美标三角形细牙螺纹。

5/8表示该螺纹大径公称尺寸为5/8“,换成米制为25.4*5/8=15.875(mm)

-18表示螺距为18牙/寸。折合成米制约为25.4/18=1.411(mm)

牙型角为60°的英制螺纹,具有标准牙型(牙底是平的或随意倒圆的)的内、外螺纹。

锥管螺纹只用于液压系统连接;而管螺纹G3/4〃只用于水管连接。锥管螺纹与管螺纹极为相似,区别只在锥度上。注意区分管螺纹和普通螺纹的基本尺寸不同。

扩展资料:

管螺纹主要用来进行管道的连接,其内外螺纹的配合紧密,有直管与锥管两种。公称直径是指所连接的管道直径,显然螺纹大径比公称直径大。1/4,1/2,1/8是英制螺纹的公称直径,单位是英寸。

螺纹夹角的测量可通过测量侧面角来实现,螺纹侧面角是螺纹侧面与螺纹轴线的垂直面之间的夹角。螺纹牙的近似轮廓在螺纹两侧直线段采样,对采样点进行直线最小二乘拟合。

相邻两牙在中径线上对应两点轴向的距离称为螺距。同一条螺旋线上,相邻两牙在中径线上对应两点轴向。线数n、螺距P、导程S之间的关系为: S=n·P。

参考资料来源:百度百科--英制螺纹

回答2:

这是一个螺纹标识:
1.UNF表示是美标三角形细牙螺纹。
2.5/8表示该螺纹大径公称尺寸为5/8“,换成米制为25.4*5/8=15.875(mm)
3.-18表示螺距为18牙/寸。折合成米制约为25.4/18=1.411(mm)

以上解释仅供参考。

回答3:

UNF和UNS是美制螺纹,它和公制的一样计算。H=0.8660t,t表示螺距,

回答4:

5/8外径为5/8英寸,一英寸18扣,UNF统一细牙螺纹,

回答5:

h=25.4*5/8-1.3(25.4/18)

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