品名：电动葫芦吊钩

技术要求

1、购置吊钩应有制造厂的合格证等技术文件方可使用；重要部门采购吊钩如：铁路、港口等，吊钩出厂需严格检验（探伤）。
2、吊钩不得有影响安全使用性能的缺陷；吊钩缺陷不得焊补；吊钩表面应光滑，不得有裂纹、折迭、锐角、毛刺、剥裂、过烧等缺陷。
3、可在吊钩开口最短距离处选定二个适当位置打印不易磨损的标志，测出标志的距离，作为使用中检测开口度是否发生变化的依据。
4、吊钩材料可选用20优质碳素钢或吊钩专用材料DG20Mn、DG34CrMo等锻造制成，严禁使用铸造吊钩。板钩的材料一般应用A3、C3普通碳素钢，或16Mn低合金钢
5、自制吊钩的技术条件应符合GB 10051.1-88～GB 10051.5-88的规定（新标准：GB10051.1-2010～GB 10051.5-2010）
6、板钩钩片的纵轴，必须位于钢板的轧制方向，且钩片不允许拼接。
7、板钩钩片应用沉头铆钉铆接，而在板钩与起吊物吊点接触的高应力弯曲部位不得用铆钉连接。
8、板钩叠片间不允许全封闭焊接，只允许有间断焊。
9、对已进行过超负荷试验的吊钩应作报废处理。

Item description: electric hoist hook

The technical requirements

1, the purchase of technical documents such as hook should have the factory certificate for use; Important sector procurement hook such as railways, ports, hook need to strict inspection (testing).

2, hook may have affect the safe use of performance defects; Hook defects shall not be welding repair; Hook surface should be smooth, can not have crack, folding, acute Angle, defects such as burrs, pares crack, burnt.

3, can be selected in hook open shortest distance place two place a sign of print is not easy to wear, measure the distance of symbol, as is used in testing whether the basis of a change.

4, hook material can choose 20 high-quality carbon steel or hook is special material DG20Mn, DG34CrMo such as forging, casting hook is strictly prohibited. Board hook materials commonly used A3, C3 ordinary carbon steel, 16 mn or low alloy steel

5, homemade hook technology conditions should comply with the GB - 88 ~ 10051.1 GB 10051.1 88 regulations (new standard: GB10051.1-2010 - GB 10051.5 2010)

6, the longitudinal axis of the board hook hook, must be in the direction of steel rolling, and hook does not allow joining together.

7, plate hook hook application countersunk rivet riveting, and in the hook of the lifting and hanging point contact high stress bending part of the rivet connection shall not be used.

8, do not allow the closed welding between laminated plate hook, only the discontinuous welding is allowed.

9, hook has been overloaded test should be done to scrap processing.