The bimetal composite hammerhead refers to the combination of two different metals to give play to their advantages. Usually, the bimetal composite hammerhead refers to the high-chromium alloy composite low-carbon alloy hammerhead, which has high wear resistance. Poor toughness can only be used as a hammer head and cannot be used as a hammer handle. The thinner the thickness of the hammer handle, the more brittle it is. Therefore, the hammer handle needs a low carbon alloy with good toughness and good wear resistance. It is a hammer head with a hammer hole. The bimetal composite hammerhead refers to the combination of two different metals to play their own advantages. Usually, the bimetallic hammerhead refers to the high chromium alloy composite low carbon alloy, high chromium alloy wear resistance and high toughness The hammer can only be used as a hammer head and cannot be used as a hammer handle. The thinner the thickness of the hammer handle, the more brittle it is. Therefore, the hammer handle needs a low-carbon alloy with good toughness and good wear resistance. The bimetal composite hammer head we are talking about is Hammer head with hammer hole.

In terms of material and organizational performance, bimetal composite hammers generally choose alloy steel and high chromium alloy for composite, while high chromium alloy hammers are only made of high chromium. As a hammer product, toughness and wear resistance are the highest requirements. The composite hammer has the toughness of alloy steel and the wear resistance of chromium alloy. Although the high chromium hammer is wear-resistant, its toughness is extremely poor. Easy to fly out due to breakage, many of our users have similar situations;

In terms of manufacturing cost, the high chromium alloy hammer is much higher than the composite hammer. If the same effect is achieved, the high chromium hammer will lose to the composite hammer in terms of cost, not to mention the practical application effect of the composite hammer is better than the high chromium hammer. Hammer; bimetal wear-resistant hammer is the first choice for crusher accessories in the crusher industry today. It has low cost and good wear resistance. Generally, the price per ton is only about 15,000 yuan, but its wear resistance is equivalent to High manganese steel has three times the service life, so most crusher manufacturers hope to equip high manganese steel hammers first to make customers feel that they are not wear-resistant, and then sell high chromium bimetal hammers. Crusher manufacturers do not produce hammers. Wear-resistant hammer manufacturer, and our company specializes in the production of this kind of high wear-resistant hammer, but some customers say that this hammer is not wear-resistant, which is related to the production process, the following is a detailed description of the bimetal for you Production process of wear-resistant hammer head.

Bimetal hammer heads are two types of hammer heads from the name. The head of the hammer head, which is the wear part, is made of high chromium material. This material has high hardness. The hammer handle is made of low chromium carbon steel with a certain degree of hardness. The important thing is the wear resistance. How to make a hammer with two materials, there are two combining processes, one is cold composite, which is the so-called mechanical composite, which is to produce the hammer handle first, and then the hammer Combined with the hammer handle, the hammer head and the hammer handle are cold combined, and there is no metallurgical combination. In actual use, especially the sledge hammer head is easy to crack and turn around. The second process is two-liquid compounding. First, the hammer head molten steel is poured into the mold, the rare earth alloy wear-resistant hammer head, and then the hammer handle molten steel is added to the mold. This is the metallurgical combination of the two types of molten steel. Will not turn around and damage like a cold compound hammer

Although composite hammers are theoretically superior to high-chromium alloy hammers, the premise is that the process is well controlled. The reason why composite hammers are currently less used in the market is because this composite process is quite difficult, and it is very difficult to achieve true composite. Difficulty. Once the two materials cannot be combined well, the probability of breakage from the composite level is higher and accidents are more likely to occur.

The surface temperature of the alloy wear-resistant hammer is sometimes not so uniform. What is going on? How should we solve such problems? Let me give you a detailed introduction.

During the heating and cooling process of the alloy wear-resistant hammerhead, because the cooling rate and time are inconsistent, the temperature difference between the surface and the inside of the hammerhead will be formed at this moment, and a kind of thermal stress will be generated at this time. This thermal stress can cause The uneven volume of alloy wear-resistant hammers affects normal use.

Under the influence of thermal stress, the surface temperature of the alloy wear-resistant hammerhead is lower than the inside, and the contraction force is therefore greater than the inside, which causes the inside of the hammerhead to be pulled, and finally causes the surface of the alloy wear-resistant hammerhead to be compressed and internally controlled. We found that the thermal stress is mainly affected by the material composition and cooling rate of the alloy wear-resistant hammerhead, that is, the higher the carbon content and alloy composition of the alloy wear-resistant hammerhead. The greater the cooling rate, the greater the uneven expansion and contraction deformation under the influence of thermal stress, and the greater the residual stress.