Nickel coating is a type of metal coating that is applied to a variety of substrates, including stainless steel, copper, and aluminum, to enhance their properties for specific industrial applications. This process involves the electroplating of a thin layer of nickel onto the surface of the substrate, providing it with excellent corrosion resistance, wear resistance, and surface smoothness.
Nickel coating is widely used in industries where materials require protection from corrosion, such as in the automotive, aerospace, and manufacturing industries. It is particularly effective in environments where exposure to harsh chemicals or high temperatures can cause metal parts to degrade over time. The nickel coating acts as a barrier layer, preventing the substrate from coming into contact with these harmful agents.
In addition to its protective properties, nickel coating also improves the mechanical and physical qualities of the substrate. The smoothness of the nickel surface reduces friction, which can extend the lifespan of the substrate. Nickel coating also enhances the substrate's electrical conductivity, making it an ideal choice for electronic components and circuit boards.
Nickel coating can be customized to suit specific applications. For example, the thickness of the nickel layer can be increased to increase corrosion resistance and hardness. Other variations of nickel coating include nickel-cobalt alloy and nickel-phosphorous, which offer even greater protection and superior chemical and heat resistance.
In conclusion, nickel coating is a highly effective solution for protecting substrates from corrosion, wear, and tear. Its versatility and customizability make it an attractive choice for a wide range of industries and applications. By providing superior protection and enhancing the performance of substrates, nickel coating plays an important role in ensuring the longevity and reliability of industrial systems and components.
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/*728*90 created on 2018/5/16*/ var cpro_id = "u3440131"; Home>Bearing knowledge>The primary factor for the normal operation of the oscillating screen rolling bearing The primary factor for the normal operation of the oscillating screen rolling bearing
[Daily Bearing Network] Oscillating screen is mainly used in stone production; metallurgy; refractory data; coal, etc. The oscillating screen is mainly composed of sieve box, vibration exciter, suspension (or support) equipment and electric motor, etc. The spindle of the vibration exciter is reversed; because of the centrifugal inertial force effect of the unbalanced weight on the exciter; the sieve box is oscillated; the finished material is sieved. /*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';
1. Exciter for yaw oscillation oscillation screening; mostly for the painful shaft exciter and box exciter. The adjustment of the painful shaft exciter device is convenient; but the cost is high; and the pain is not adjusted, the box type The vibration exciter uses a fan-shaped partial pain block with adjustable relative orientation; the adjustment of the excitation force can be completed; then the amplitude adjustable intention is reached.
The centrifugal force of the excitatory mass during the operation of the exciter makes the deviation axis meander; it causes the relative deflection of the ferrule in the bearing table; because the partial pain will cause the oscillation caused by the frequency conversion and its various harmonics; The inertial force and inertial force couple will incur the dynamic reaction force and oscillation of the bearing; damage the smooth operation of the bearing and other parts; attack high-frequency oscillation. Discussion and analysis of the analysis; when the vibration frequency of the exciter bearing and the elastic oscillation of the screen box The first order natural frequency is combined; it will incur the intense oscillation of the screen box elastomer.
An oscillating system consisting of a bearing and a painful system; can be regarded as a single degree of freedom system. The bearing active shaft and the driven shaft system both have a certain value of the resonant frequency; if a certain excitation frequency is close to the resonant frequency; then the resonance occurs. Other; because the partial pain has centrifugal inertial force; so there will be a tortuous oscillation; if the rotational speed is close to the critical value; then the tortuosity resonance.
2. The bearing has a few precision oscillations and the excitation force is large; the bearing receives a large radial force; then the oscillation is intense. The higher the bearing precision; the smaller the oscillation. The raceway, especially the waviness of the tumble surface, has the greatest influence on the oscillation of the bearing. The gap between the roll body and the cage and the rollover surface of the watch ring and its relative motion will cause the bearing to oscillate; this is because the spin frequency of the roll body is high; the work appearance is touched with the raceway; the roll body, the cover The oscillation size of the ring and cage is roughly 4:3:1. Therefore, the downward bearing oscillation should first improve the precision of the surface of the rolling body.
3. If the radial clearance of the radial clearance of the bearing is too large or too small, the bearing system will have a large oscillation. The radial clearance is too small to cause high-frequency oscillation; if it is too large, it will cause low-frequency oscillation. The experimental results of the oscillating screen bearing are marked. The radial clearance is too large; the radial natural frequency of the elastic system of the descending bearing; the simple attack resonance; the large low-frequency oscillation occurs. This is because a large acceleration occurs at the impact point of the rolling body and the ferrule. Attacking high-frequency squeezing waves unrelated to mechanical quality and shape of the object; and transmitting the inside of the metal, but in the later stage of the impact; mechanical vibration will be caused by a mechanical oscillation that is lower than the frequency of the impact tightening wave. Therefore, the radial clearance will make the bearing The oscillation on the passband is aggravated.
4. The cooperation between the outer ring and the supporting hole will affect the transmission of the oscillation; the tight cooperation will force the deformation of the raceway; increase the shape error; induce the oscillation to add. The looser cooperation can make the oil film in the gap have a damping effect. The outer ring and the bearing The data of the support hole has a large difference in properties; in particular, a rubber damping ring is placed between them;
5. Conflict and smooth bearings are the primary source of oscillation for the oscillating screen; because the oscillating screen is maintained by a large amount of encouragement; therefore, the bearing is subjected to large radial forces; the oscillating screen is in operation; The exciting force will incur the elastic oscillation of the bearing system. If it is smooth, it will cause a large conflict to make the bearing temperature rise too high; the thermal expansion is too large; the radial clearance is obviously reduced. Law teacher.
The above five points are summarized by Zhengzhou Xinhai Machinery based on the information accumulated by the experience and the user response of the oscillating sieve; Xinhai Machinery advocates that the users of the oscillating screen and other equipment should pay attention to the normal protection of the equipment; ensure the stable operation of the equipment; The products of Zhengzhou Xinhai Machinery mainly include: PE jaw crusher, PF impact crusher, impact crusher, cone crusher, high-efficiency fine crusher, cement ball mill, lime ball mill, reverse dryer, inversion kiln. , oscillating screen, conveyor and other equipment. Welcome new and old customers to Xinhai production base survey.
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Source: China Bearing Network Time: 2014-03-29