万喜堂彩票
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内螺纹单一中径量仪数显指示规航空内螺纹中径测量仪美国GSG内螺纹测量中心美国进口GSG航空螺纹规
Variable Thread Gages
SYSTEM 21
System 21 provides for interchangeable assembly with respect to functional size only. Functional size must be measured at the maximum material limit within the length of standard gaging elements. The characteristic known as NO GO functional diameter must also be verified. This can be accomplished by using fixed limit gaging or variable gaging with functional elements.
SYSTEM 21A (FOR METRIC THREADS IN ACCORDANCE WITH ANSI B1.18M)
System 21A provides for interchangeable assembly with functional size verified at the maximum material limit using standard length gaging elements. This can be accomplished using fixed limit gaging or variable gaging with functional elements. System 21A also states that the minimum material limit (minimum pitch diameter) must be verified by inspecting two thread flank locations over the length of the thread. This can be accomplished by using variable gaging or thread roll snap gages with pitch diameter elements.
SYSTEM 22
System 22 provides for the interchangeable assembly with functional size verified at the maximum material limit using standard length gaging elements. This can be accomplished using fixed limit gaging or variable gaging with functional diameter elements. System 22 also states that the minimum material limit (minimum pitch diameter) must be verified over the full length of the thread. This can be accomplished using variable gaging with pitch diameter elements.
SYSTEM 23
System 23 provides for interchangeable assembly with functional size verified at the maximum material limit using standard length gaging elements and minimum material limit (minimum pitch diameter) must be verified over the full length of the thread. The gaging requirements for SYSTEM 22 would also apply here but in SYSTEM 23 other thread characteristics such as lead, flank angles, taper and roundness must have to be independently verified. Only thread characteristics, which are specified, will have to be inspected for SYSTEM 23 compliance.
TC & ITC Comparators
Precision
Ball slide construction and constant gaging pressure assure precise reading through linear travel of the ball slide.
Definitive
Helical path seating and 60% peripheral contact provide functional size position within the pitch diameter tolerance assigned.
Gaging Range
Single frame covers a size range of #10 through 3/4".
Versatile
Segments are easily changed with positive mounting pin alignment.
Economical
Reduced gaging time compared to Go/NoGo gages .
ITC Comparator
Precision
Rigid construction and constant gaging pressure assure precise readings.
Definitive
The ITC gage reads the actual size of the pitch diameter showing its position in relation to the pitch diameter tolerance assigned.
Gaging Range
Single frame covers a size range of #10 through 2 1/2" , Larger frames are available up to 8"
Versatile
The positive alignment feature of the frame allows segments to be easily changed with positive mounting pin alignment.
Economical
Reduced gaging time compared to Go/NoGo gages.
万喜堂彩票专业从事螺纹检测,代理销售各类螺纹中径量仪、螺纹单项仪、螺纹参数检测、螺纹通止规,代理美国GSG单项参数测量仪、美国GSG螺纹规,期待您的咨询。
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