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International Standard Hot Sale HDD Rock Drill Rods
Product Description:
Our drill rods are all manufactured by CNC machines. They're made
of high quality steel with heat-treated.
Specifications:
1. high quality steel tube
2. thru-wall heat treated tube body
3. consistent concentricity, straightness
4. tapered threads
Product Advantages:
strong and ductile steel pipe;
solid quality and considerate service;
cost-effective;
Raw materials:
We choose the best steel tubes in the market to manufacture our
rods and pipes. Spot check will be conducted after the steel tubes
delivered to company. We will make sure the compositions and
specifications match the inspection report form the suppliers.
Heat treatment control:
Heat treatment will greatly improve the material strength and
increase the thread wear life of the rods and casings. We conduct
either tru-wall or both ends heat treatment to the tube body. After
heat treatment, strength, hardness, straightness and concentricity
of the treated tubes will be tested in our lab.
Thread opening process:
Accuracy of threads will determine the use effects and life time of
drill rod and casings.
CNC latches and form cutter are used in thread opening processing
to minimize error made by anthropic factors.
Additional thread treatment:
Surface of the threads will be cleaned to remove burr adhered after
threads are opened.
Afterwards, the tread surface will be phosphated to improve surface
conditions.