HEBEI TUOKAI SAFETY TOOLS CO.,LTD
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Safety non sparking spanner,Adjustable Wrench,Al-Cu Be-Cu
1. Safety non sparking spanner,Adjustable Wrench,Al-Cu Be-Cu
2.aluminum bronze material
3.die forged processing
4.own factory
5.ISO9001 certification
Specification:
| Number
| L | K | Be-Cu | Al-Cu |
| TK125-02 | 100 | 13 | 33 | 30 |
Composition:
| Beryllium copper: GBEx ⅡC Be: 1.8% - 2.3% Ni: 0.2% - 0.5% Others: < 0.5% Cu: Rest Hardness: 35-40 HRC (HB283-365) Tensile Strength: 1117 N/mm2 ~ 1326 N/mm2 |
| Aluminum bronze: GBEx ⅡB Al: 10% - 12% Ni: 4% - 6% Fe+Mn: < 5.8% Cu: Rest Hardness: 20-30 HRC (HB229-291) Tensile Strength: 782 N/mm2 ~ 989 N/mm2 |
The processing procedure
Al-bronze (HRC≥25°b>75-85kgf/mm² )
Be-bronze(HRC≥35°b>105-120kgf/mm²)
1) To prepare the raw material, blanking
2) Smelting
3) Pouring
4) Cut the water gap
5) Stored in the semi finished products warehouse
6) Punching
7) Through the drawbench or slotting machine
8) PE plain end and chamfering
9) Drill hole
10) Perfect the product and marking
11)If Be-bronze, need heat treatment
12) Polishing
13) Surface treatment
14)Stored in the finished products warehouse