ENGLISH/JAPANESE VERSION
この規格は，ボルト・ナットの組合せによるねじ締付けに対する特性値（以下，締付特性値という。）を求めるための試験方法について規定する。この規格で対象とする締付特性値は，トルク係数，総合摩擦係数，ねじ面摩擦係数，座面摩擦係数，降伏締付軸力，降伏締付トルク，及び極限（最大）締付軸力とする。
なお，この規格は，ボルト・ナット以外のねじ部品の締付特性値及びねじ部品と構造体のねじとの組合せの締付特性値を求める場合にも準用することができる。ただし，おねじ部品に圧縮力を与える止めねじ類及びおねじ部品自体でねじ立てをする木ねじ，タッピングねじ類並びに特別な戻り止め機能を付与したねじ部品の締付特性値を求める場合には適用できない。
注記．この規格はJIS B 1084：1990を一部変更，追 記したものである。
This standard specifies the method of test for obtainingcharacteristic values for tightening (hereinafter referred to as”tightening characteristic value”) by the combination of bolts andnuts. This standard covers the tightening characteristic values ;torque coefficient, coefficient of total friction, coefficient offriction between threads, coefficient of friction between bearingsurfaces, yield clamping force, yield tightening torque andultimate (max.) clamping force.
Further, this standard is applicable, as appropriate, to casesof obtaining tightening characteristic values of threaded partsother than bolts and nuts and tightening characteristic values ofcombinations of threaded parts and screw threads of constructionbody. However, this standard is not applicable to the cases of thetightening characteristic values of the set screws used to givecompressive force to external threaded fasteners, the screwstapping with their own external thread including wood screws andself-tapping screws and the threaded fasteners having specialself-locking function.
Remark : This standard is derived from JIS B 1083:1990 ; thus,containing the same provisions as those of JIS B 1083:1990 withpartial changes and additions.
- Edition:
- A
- Published:
- 09/30/2005
- Number of Pages:
- 28
- File Size:
- 1 file , 640 KB
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