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QUALITY

E-MARK Quality control

Incoming inspection – IPQC—VQP – Outgoing inspection

RAW MATERIAL INPUT
Every lot of input of raw material should be inspected through composition analysis and taking record of all the data for studying to ensure every lot of input meets with our Q.C request.

BLADES PRPCESS INSPECTIONS
Tips:   We check the tip size by DIN standard gauges. To inspect the QC dimension in blade thickness, width and length.

HEAT TREATMENT INSPECTIONS
1. Hardness testing:
Blades must be proceeded by Heat Treatment till the hardness allowance within HRC +/- 1.
2. Torque testing:
We are able to achieve the torque of the blade over 30% of DIN standard which is by using chrome-molybdenum steel.

STRAIGHTENING
To ensure all blades are straight after heat treatment
We do straightening and test by the same machine at the same time.

PLATING INSPECTIONS
In order to ensure the resistance to erosion after plating
We do Salt Spray Testing and also check appearance of plating color.

IMPACT TESTING
The testing is based on two conditions
1.Normal Temperature: 23℃ ± 5℃, H = W/P = 2FP
2.Low Temperature: -25℃ ± 3℃, Stay in the fridge more than 2 hours, (H=W/P=0.6FP) select 3 points of the blade be impacted.

VISUAL & FINAL INSPECTIONS
After the blades are assembled with handle, we start to do final inspection before packing and shipping out which are as:
1.Check straight line between blade and handle
2.Ensure the handle is clean
3.Magnetize all blades.





VDE INSPECTION
TESTING PROCESS

High Voltage Testing

"Quality has no Compromise"

Especially for VDE 1000V Insulated Screwdrivers. We test our insulated Screwdrivers piece by piece on our High Voltage Testing Machine. During the testing, the voltage must be 12,000 V ~ 13,000 V.

Impact Testing
The testing is based on two conditions:
1. Normal Temperature: 23 ± 5℃, H=W/P=2FP
2. Low Temperature:-25 ± 3℃, stay in the fridge more than 2 hours, (H=W/P=0.6FP) select 3 points of the balde to be impacted.

Pull Testing
Pulling Insulated Screwdriver on the pulling machine with 50 Newton tester.

Fire Testing
The testing samples put on the fire with 3.7 Million Joule/㎥ 10second then turn-off the fire. The height of burning can not over 120mm.




CERTIFICATION    
E-mark apply for VPA/GS certificates & approval for factory audit of decades. Also we make full range of VDE insulated tools of Screwdriver / Pliers. We insist to keep the good reputation of continued quality maintains.


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