Analysis of the influence of low quality ring mould on granulator
At present, because of the popularity of feed enterprises and the increase of pellet feed production, the demand of granulator ring mold has also increased. Therefore, some small manufacturers of poor quality ring mould also flow into the market, and some feed production units are attracted by their low price, but it should be known that the poor quality Ring die has rough processing and low service life, and it is important to have the disadvantages of low imitation precision, poor concentricity and big jump of Ring die face. If the granulator is used for a long time, the service life of the granulator will be greatly shortened. According to the recent investigation of my after sale service department, with the unit of non Zhengchang original ring mould, after a few months the granulator generally runs, the parts of each part appear different degrees of wear and tear, and the frequency of the bearing damage is high, the oil seal oil leakage is serious, the main engine often appears malfunction, resulting in the unstable work of the granulator and low production capacity. Elephants. This is actually like the current market mobile phone, although the price is only 1/3 of the brand machine, but it is more than five times more harm to the head brain radiation, the same reason, why the use of poor quality ring mold will shorten the life of the granulator? The price ratio is not good, because there are many reasons.
1. the low quality ring model is in pursuit of low sales price, so it has some limitations on the selection of billet, it is impossible to select high quality materials and only choose low quality and low price steel as raw material, but the structure of the billet is not tight, the toughness is not required and the wear-resistance is poor, and the life span of the ring made of this steel billet Short and easy to crack. If such a ring mold is chosen, it will not only waste the capital investment of enterprises frequently changing moulds, but more serious is the hidden danger of production safety.
2. poor quality ring mold processing equipment is rough, it is impossible to have the accuracy of machining internal and external circle. At present, most of the ring mold manufacturers in the ring mold finishing, most of the use of the old type lathe, the equipment is old, the processing precision is not up to the requirements, and then this kind of ring mold making itself is imitated, the main matching surface precision and processing size is difficult to ensure accurate, like the Ring die and the hoop of the combination surface, processing only In order to have more than ten wire errors, the hoop can not hold the Ring die tightly, which causes the ring mould to shake and friction in the high speed operation, and the hoop and the empty axis drive wheel will be damaged simultaneously, and the vibration of the fuselage appears.
3.The machining technology of the Ring die hole of 3. granulator is very particular. For example, Zhengchang Ring die drilling equipment is made of gun drilling and drilling. It has the advantages of neat arrangement of die holes and smooth surface of hole wall. But the poor quality ring mold hole machining mostly use small drilling machine manual operation, the inner wall of the hole is rough and there is rib, the Ring die compression ratio is different, forming the Ring die material difficult, easy to plug the machine and other conditions, so that the electricity consumption increases, the production capacity falls, the particle appearance is not smooth, the finished material length is uneven, especially when the machine plugging, Ring die The temperature of the extrusion chamber is rising rapidly, which makes it easy to burn down the roller bearings and spindle bearings and increase the working load.
4. Ring die quenching process is an important part of the ring mold manufacturing. The quenching process of Jumeila Ring die is very particular. All the vacuum quenching furnace and multi-purpose quenching furnace are used. At present, it is difficult to have these advanced equipment in the small ring mold production plant. It is usually quenched by the soil well type furnace. This kind of equipment can not automatically control the temperature of the Ring die quenching. It causes the hardness of the surface to be inconsistent after the Ring die quenching, and the deformation coefficient is large and the Ring die is easy to lose circle. It will produce pressure roll frequently impact ring die, making the vibration noise of the granulator increase, it is also an important factor of the damage of the spindle and the empty axis. Once the bearing of the spindle and the empty axis is damaged or running inside and outside, the spindle and the empty axis may be scrapped. For example, the wear of the bearing hole of the host box will not only produce the production of the granulator, but the output is obviously reduced. Low, and it will cause the granulator to not work properly.
5. because the poor quality Ring die processing is mostly imitation, its processing precision can not be controlled, plus the accumulation of all aspects of error, such as the long-term use of this type of ring mode, the normal work of the granulator will be seriously affected, and can not reach the purpose of safety, high production, low consumption of the granulator at all. Careful calculation of an account, the use of poor quality ring model, although the purchase price is low, but the granulator often fails, parts and bearings are often replaced, production reduction, electricity consumption increase, manpower waste, will make the economic benefits of the enterprise to be affected, in order to make your granulator in the feed production process to achieve the quality of the product quality excellence. High output, low power consumption, safe production, full play of the working efficiency of the granulator, we suggest that the best selection of the Ring die of the granulator is to choose the original standard and high quality ring mold.
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