QA-SOP-23(C)扭力计操作保养校正作业指引

作业指导书 Standard Operation Procedure
“扭力計操作保養校正作業指引 Torque Testing,and
Maintenace SOP“
制訂部門: 品保部
生效日期: 15-7-2004 Array蓋
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文件審批及變更記錄
主要用途 (Main Application):
螺絲扭力之量測 (Testing of Bolt/Screw ’s torsional strength). 1. 型號及種類 (Size and Type)
2.1各種不同螺絲頭孔型(梅花孔、四角孔、割溝、十字型、米字型、六角孔)Different types of Bolt/Screw head’s recesses (Torx, Square socket, Slot, Cross, Pozi, Hex. socket). 2.2一般螺丝均用台钳 Normally clamp with vice.
2.3如批头打滑(主要为十字、米字针形)用扭力台架 If drive bit loose (Mainly Cross and Pozi recesses), use Torque Testing Fixture 。

2. 操作方法 Operation Method
3.1使用前注意事項 Precaution Steps
3.1.1檢查扭力計是否在校準狀態 Verify torque wrench reliability;
3.1.2使用前擦拭測定臺,不得有鐵銷或雜物 Ensure the vice fixture in clean condition without steel chips and etc …;
3.1.3檢查扭力計是否歸零 Reset the reading dial to zero before testing. 3.2使用要領Testing Guide
3.2.1選擇適當的扭力扳手 Selection of proper torque wrench ’s measurement range; 3.2.2將套筒內裝入bit (梅花孔、四角孔、一字型、十字型、米字型、六角孔) Insert the drive bit into the block spana which able to attach with torque wrench (Torx, Square socket, Slot, Cross, Pozi, Hex. socket). ;
3.2.3螺絲垂直夾在夾具上,鎖在夾具上約露出2~3牙處,並鎖緊 Position and clamp the Bolt/screw on the clamping vice vertically, left 2~3 pitches unclamp;
3.2.4將夾具上之壓盤向下壓緊 Lower down the bit holder until it is engage with
bolt/screw recess;
（3.2.4图） （3.2.5图） 3.2.5扭力扳手套入套筒上方,保持平穩 Engage torque wrench plug into the block spana from Torque Testing Fixture;
3.2.6套筒與夾具保持直立,套筒與扭力扳手保持水平 Ensure the block spana and clamping vice in vertical position, block spana and torque wrench in right angle position; 3.2.7扭力扳手旋轉時保持直立與水平（见下图）,旋轉時間保持2~5秒 Maintain the vertical and right angle position during testing, rotation duration maintain in range 2~5 seconds;
3.2.8樣品扭斷時,读出針盤表上之測試值 Read the ultimate breaking torque reading from the reading dial indicator after specimen completely detached.. 3.3使用中應注意事項 Application Precaution
3.2.1扭力扳手刻度範圍不得超過百分之75以上使用,避免扭力扳手彈性疲勞 Torque wrench application range shall not use to test with specimen ’s breaking torque that more then 75% of the torque wrench ultimate torque limit to avoid torque wrench overload; 3.3.2避免過負荷使用,及防止掉落地面 Avoid fatique usage and do not fall off; 3.3.3扭力扳手正轉逆轉測試值差距在3%以上時,應送供應商或校準機構調整和校驗 Clock wise and Counter Clock wise torque variance more then 3%, should send to supplier or external lab. for tuning/re-calibrate. 3.4保養內容 Maintenance Information
3.4.1以拭布沾防銹油擦拭表面 Apply anti-rust oil on expose surface;
3.4.2扭力扳手應防止碰撞、磨損,以確保精度 Prevent from impact and worn to ensure
the equipment accuracy.
3.5校驗
3.5.1校驗周期: 一年一次 Calibration duration: yearly ;
3.5.2校驗方法: 委外校驗 Calibration method: external lab.
3.附件:
4.1机械牙螺丝破断扭力参考标准 Machine screw breaking torque reference:
4.2自攻牙螺丝扭力标准参照<<ICQ作业指引>> Self tapping screw or thread forming screw
breaking torque refer to<<ICQ SOP>> .
4.3此测试方法参照ISO898-7:1992(E)标准 The above testing method refer to ISO 898-
7:1992(E).。