How to maintain the drawing die?
In order to achieve quality wire and effectively control wire drawing die costs, the following aspects should be controlled:
1. Ensure wire drawing equipment Runs Smoothly.
The wire drawing drums and wire guide wheels are running smooth and soft without tight spots or wear grooves that exceed their run-out tolerances.
If the drum and guide wheels show any wear grooves, they should be repaired immediately. Good lubrication conditions are prerequisites to ensuring surface quality of wire products and improving the lifespan of moulds.
Always check the lubricating strength index to remove the copper powder and impurities in the lubricating oil so that it does not contaminate the equipment and die holes. If lubrication fails, the lubrication system must be replaced and cleaned immediately.
2. Reasonable collocation of molds.
The reasonable collocation of molds is a key element of ensuring the surface quality of the wire rod, accurately and consistently controlling the dimensions of the wire, reducing the wear of the wire drum and reducing the operating load of the equipment.
In the case of the sliding wire drawing machine, you need to be familiar with the mechanical elongation of the equipment, and choose a reasonable sliding coefficient. This is the first step of mold matching.
The hole type of the mold is selected according to the material of the wire being drawn and the area reduction rate of each wire drawing.
Generally speaking, the harder the wire being drawn the smaller the compression angle of the mold and the longer the sizing area, and vice versa.
The area reduction rate of each wire drawing is also closely related to the compression angle of the mold used. The compression angle should be adjusted appropriately according to the size reduction rate.
3. Proper maintenance and repair of molds.
Proper maintenance and repair of molds is important to lower the cost of wire drawing.
There was a slight ring abrasion initially at the contact area with the wire in the compression area of the die that would vibrate to the sizing area and cause a serious drop in the surface quality of the wire and grow the wire size.
In addition, severe wear and tear would have lateral cracks (especially in the case of soft filaments when drawing) or longitudinal cracks (especially in the case of hard filaments when drawing) so that the drawing dies would be scrapped early.
It is therefore important to scientifically formulate remanufacture specification for wire drawing dies are based upon the type of wire to be drawn and the particular characteristics of the wire drawing machine.
Normally, only slight annular wear requires polishing before re-use or to meet drawing requirements, only a slightly larger diameter.
Severe netted wear and tearing creates substantial reduction in mold repairs and continued service even scrapped, thus increasing cost in wire drawing.
Why Is the Drawing Die the Basis of Drawing Die Quality?
The wire drawing die is a mold for producing wire out of metal that is processed from coarse to fine sizes until it becomes the size needed. This specific mold is what we call a die. Next, we learn more about the purpose of the product.
The wire drawing die products have many applications in the areas of TV radar, instrumentation and aerospace.
So, related products and various aluminum alloys also use ordinary drawing dies ,diamond drawing dies and PCD wire drawing dies.
In addition to using natural diamond as a raw material with strong wear resistance and long service life.
The pipe manufacturing process has several separate process steps of lamination, die drawing, and turning. The products can be divided into several varieties and are constantly and widely used.
As social development continues, the quality and efficiency of this product is also constantly changing.
This has led to new ,room for development as it is still in the adaptation stage . In addition, it has more advantages with respect to material selection and processing technology.
Hence, it has wide uses and provides great help in our daily lives. The above drawing die is the basis of drawing quality.
What Are the Factors That Affect the Service Life of Wire Drawing Dies?
The service life of TC Dies will directly affect not only the cost of the production but also the stability of product quality and production efficiency.
1. The Effect of Material Production on the Service Life of the Drawing Die
The die material is one of the important factors impacting the service life of the die. Performance of the die material in hardness, corrosion resistance, wear resistance, fracturing resistance, resistance to plastic deformation, cold and hot fatigue resistance etc. have a lot of variation, so it is necessary for the performance of degree of die material to meet the specific conditions for use of wire drawing dies, otherwise, it is bound to led to the premature failure of the die.
2. The Effect of the Hole Structure on the Service Life of the Drawing Die
With modern drawing technology improving, mold design is becoming more advanced. Modern design has introduced new concepts in mold design.
With the introduction of new “straight” drawing dies in replacement of the “arc” drawing dies, the linear die has seen its service life increase by as much as 3-4 times the service life of an arc drawing die after a series of improvements on the die, this is particularly useful to high speed drawing.
3. The Effect of the Production Process on the Service Life of the Drawing Die
The production of wire drawing dies involves several steps including forging, machining, and heat treatment.
If any of the manufacturing processes are not reasonable, it is possible to reduce the performance of the mold steel, the forming of structural defects, and create hidden dangers of early mold failure.
4. The Effect of Working Conditions on the Service Life of the Drawing Die
The processed materials with various thicknesses and materials can have a great impact on the service life of the drawing die.
The greater the strength and thickness of the processed material, the greater the force the die has to endure, and therefore the service life is relatively low.
If there is an affinity between the processed material and the die material, it is indeed possible that the processed material may adhere and wear with the die during the molding process and result in a reduction in service life.
5. The Effect of Reasonable Use and Maintenance of Wire Drawing Die on Its Life
It is reasonable to say that during the drawing process, it is possible to maintain the drawing die and enhance its level of repair as well as repair level, and the reasonable use of the drawing die is an important means by which to extend the service life of the die.
Furthermore, good lubrication can effectively reduce friction and friction heat which will reduce mold wear and improve the service life of wire drawing mold.