45#Steel Double Box Offset Wrench

Product Description

II.The Range of Our Products

Our main products have Wrenches,Pliers,Hammers,Screwdriver,File,Blades,Spades,Bars,Chisels,Punches,Buckets,Scoops,Basin,Dustpan,Kettles,Brushes,Shears,Knives,Sockets and many other various hand tools:
Our main products have non-sparking safety tools,special tools ,anti-magnetic tools,electrostatic instruments,explosion proof tools sets,measuring instruments ,emergency lightings fire emergency supplies and so on.
III.The Materials of Our Tools 

 

1.Aluminum bronze (Al-bronze)  HRC≥*5°b>****5kgf/mm2  Anti-explosion

 2.Beryllium bronze(Be-bronze) HRC≥*5°b>******0kgf/mm2 Anti-explosion and anti-magnetic

 3.*5#steel  The name of the national standard GB ,also called ***5 or **0M*6 in JIS,C*5 in DIN.

 4.*0 Cr  

 5Stainless Steel**4                                                                                                   

 6 Titanium alloy 
The non-sparking safety tools aluminum-copper alloys (aluminum bronze) and beryllium copper alloys (beryllium bronze), two materials.

 

Aluminum-copper alloy non-sparking tools is synthesized precious rare metals, smelting, forging made the tool surface yellow. Stretch of more than HRC*5 ° tensile strength δ b> ****5kgf/mm2 other technical indicators all reached the advanced level of similar foreign products. Are to ensure safe continuous use space in the flammable gas ethylene (concentration 7.8%), red (hit) strike, friction drop hammer produces no sparks explosion.

 

Beryllium copper alloy non-sparking tool is synthesized with military materials and precious rare metals smelting, forging made the tool surface yellow. Stretch of more than HRC*5 ° tensile strength δ b> ******0kgf/mm2 other technical indicators all reached the advanced level of similar foreign products. Continuous use in flammable gas hydrogen (*1% concentration) space are to ensure safety, red (hit) strike, friction drop hammer produces no sparks explosion. Beryllium copper alloy explosion-proof tools also have special antimagnetic function, the normal use of the magnetic field environment.

IV.Surface Treatment

 

The surface treatment non-sparking tools: 

against electrostatic spray chart, true color 

The surface treatment of the special tools: 

flange processing (also known as boiled black), electricity Ming paint, galvanized chrome-plated 

V.Manufacturing Process

 

Process of non-sparking tools:
Foundry (ingredients - melting - coke casting - cut outlet - into semi-finished library) machining (drilling - garland, flower arrangement - flat chamfer - fitter throwing neck - marking - polished - heat treatment - into finished products)
Process of special tools:
Forging blank - into finished products - processing (drilling - flower arrangement, garland, red flowers - flat chamfer - gas cutting rough - hit the the tail hole - grinding wheel polish - surface treatment - into finished products
VI."Non-sparking" Tools’Application

 

 

 

"Non-sparking", "spark reduced", "spark-resistant" or "spark-proof" tools are names given to tools made of metals such as brass, bronze, Monel metal (copper-nickel alloy), copper-aluminum alloys (aluminum bronze), or copper-beryllium alloys (beryllium bronze). 

 

Commonly used hand tools are often manufactured of steel alloys. Preferred "non-sparking" metals have less tensile strength than steels usually used to make tools. A lower tensile strength means the metal has less strength or resistance to tearing apart when stretched under test conditions. It also means that these tools are softer, wear down more quickly than ordinary steel tools, and have to be dressed more frequently.