Appropriate attention should be paid to the selection of the ingredients added to the lubricating oil. If corrosive substances such as water and chloride are present in the oil, the metal tooth surface will be rusted, causing cracks, and the bubbles in the oil will also cause the metal to fall off prematurely. In summary, the selection of a suitable viscosity of the lubricating oil has an important impact on the gear transmission. Selecting a larger viscosity oil can reduce the friction coefficient and contact stress, is less prone to cracks, and the oil does not easily enter the crack, making pitting and flaking difficult to expand. .
Tooth surface temperature is not the only condition that causes gluing to occur, but only a requirement that the generation of gluing is the result of a combination of dynamic and dynamic effects of the system. There are many factors affecting the bonding. In terms of lubrication, the viscosity, type and lubrication method of the lubricating oil have a certain degree of influence on it. In general, the higher the viscosity of the lubricating oil, the higher the gluing limit load value. Lubricating oil of a certain viscosity can often act as a buffer for vibration absorption of a gear transmission with an impact load. In addition, under the condition of the pressure of the lubricating oil, the viscosity will increase correspondingly with the increase of the pressure, and this characteristic will have a great influence on the bearing capacity of the lubricating oil film.
They rely mainly on the viscosity to create a fluid lubricating film between the tooth working surfaces to reduce and prevent the occurrence of gluing. The greater the viscosity of such lubricants, the better the gluing resistance; for the composite mineral oil with the oil agent added, due to The adsorption of oily molecules can form a stronger oily boundary film than pure mineral oil to resist gluing. Another extreme pressure gear oil can be produced from certain components in the metal due to the additives contained in the oil. The chemical reaction produces a highly resistant chemical reaction oil film on the tooth working surface. This inorganic coating oil film has high strength, can withstand large loads, and is more resistant to gluing.
In addition, the supply amount of lubricating oil and the lubrication method also have a certain influence on the generation of gluing. The specific performance is as follows: the more sufficient the oil supply, the higher the gluing limit load of the oil can be improved, but it has been proved by practice that when the oil supply amount is more than a certain degree This situation will no longer appear. In terms of lubrication method, oil bath lubrication and fuel injection lubrication are commonly used lubrication methods in gear transmission. For the cooling effect of high-speed gear transmission, the lubrication effect of the injection is better, and the nozzle is placed on the gear teeth. The piercing end is more suitable. It turns out that when the gluing phenomenon occurs, the temperature rise rate of the tooth surface also increases, and the visible scratches of the naked eye can occur, and the noise of the transmission is also significantly increased, which will seriously affect the normal operation of the gear box.
Nickel-based alloy powders are commonly used in plasma transfer arc welding (PTAW) due to their excellent corrosion resistance, high temperature strength, and good weldability. These alloys are typically composed of nickel as the base metal, with various alloying elements added to enhance specific properties.
Some commonly used nickel-based alloy powders for PTAW include:
1. Inconel 625: This alloy powder is widely used for PTAW due to its high strength, excellent resistance to corrosion, and oxidation at elevated temperatures. It is commonly used in applications involving seawater, chemical processing, and aerospace industries.
2. Hastelloy X: This alloy powder is known for its high-temperature strength and oxidation resistance. It is commonly used in applications involving gas turbine engines, industrial furnace components, and chemical processing.
3. Monel 400: This alloy powder is known for its excellent resistance to corrosion, particularly in marine environments. It is commonly used in applications involving seawater, chemical processing, and oil refining.
4. Inconel 718: This alloy powder is known for its high strength, excellent resistance to corrosion, and good weldability. It is commonly used in applications involving aerospace, oil and gas, and nuclear industries.
5. Inconel 601: This alloy powder is known for its excellent resistance to high-temperature oxidation and corrosion. It is commonly used in applications involving heat treatment equipment, chemical processing, and power generation.
These nickel-based alloy powders can be used in PTAW processes to create high-quality welds with excellent mechanical properties and resistance to corrosion and high temperatures.
Inconel Powder,Nickel Powder,Pta Welding Ni Alloy Powder,Laser Cladding Ni Base Powder
Luoyang Golden Egret Geotools Co., Ltd , https://www.xtccarbide.com