TOOLS FOR COLD HEADING AND THREAD-ROLLING MACHINES
For small diameter of wire drawing, as well as applications that require excellent surface quality of the wire, there is nothing better than drawing with diamond dies, manned by a single crystal of natural or synthetic origin, the proposed merger of Taiwan Metiz Alliance.
Diamond die - a tool for wire drawing equipment that is used for drawing of soft copper, aluminum, and stainless steel wire, tungsten and steel wire with a copper coating. Treatment Principle by drawing is gradual decrease in the diameter of the wire from entering the diamond die to exiting therefrom (as shown below).
- Excellent surface quality of the finished product.
- Low coefficient of friction.
- High wear resistance and durability of the calibrating zone.
Diamond dies are used for drawing the magnetic, tungsten, copper wire, stainless steel and precious metals.
The structure of diamond dies
Type of diamonds
The geometry of the die
|Soft wire||Hard wire||
Soft wire: Copper, Aluminum, brass, gold, etc.
Hard wire: stainless steel, steel with copper, brass or zinc coated wire of tungsten.
|The entrance area,α||70°±20°||60°±20°|
|Corner crimping zone,ß||35°±5°||35°±5°|
|The diameter of the drawing channel, D%||20-50||40-80|
|The angle of the exit area,θ||15°±5°||15°±5°|
|Available configurations for different wire material|
Technical characteristics of the diamond dies
|Type of dies||Dimensions of dies||Tolerance||Mandrel||Specifications of mandrel die|
A: diameter of mandrel dies
|D||20.00-32.00||10||85||40||Note: Dimensions are in mm.|
Application of diamond dies
|Material||Size, mm||Wolfram carbide||ND||SD||Application|
|Brass||0.18||1||200||600||El. copper wire|
|Brass||1.0||1||150||600||El. copper wire|
|Zinc Steel||0.175||1||10||60||Network cable|
|Copper-coated steel||1.20||1||50||120||Arc welding with gas protection (CO2)|
|Stainless steel||0.25||1||100||200||Stainless steel cable|
|Stainless steel tube||0.415||1||100||200||Needles medical syringes|
|Brass coated steel||0.175||1||6||30||Tire Cord|
|Galvanized iron||0.20||1||50||250||Steel cord|
Instructions for diamond dies
To extend the life of the diamond die, you must:
Ordering the necessary tools for you, please do not forget to specify the required parameters and characteristics, such as:
Table of respective handling of matter and the type of dies