Knowledge of stainless steel racks: maintenance of stainless steel racks Stainless steel racks have been widely used. The fact that stainless steel racks are not easy to rust does not mean that they will not become dirty and worn. Therefore, in the daily use of stainless steel racks, we must pay attention to maintenance and maintain.
First, start from the installation point of view. The tightness of the rack is important, do not be too tight or too loose, which will damage the chain.Our company also produces
Cnc Turning Parts. Turning is a method of cutting workpieces on a lathe using the rotation of the workpiece relative to the tool.
Second, the stainless steel rack should be kept clean to avoid sunlight and rain soaking, to prevent contact with substances such as acid and alkaline organic solvents. This will reduce corrosion of chain drive components.There are also
CNC Machining Parts. CNC machining is a new type of machining technology. At the same time, the CNC machining method is still a process technology characterized by agile speed.
3. When the rack is seriously worn, parts such as new chains should be replaced to ensure good results. Never use old and new products together. This results in increased wear. Fourth, the rack should be lubricated in time to make the chain work more smoothly and quickly and reduce wear and tear. This is also a matter of daily maintenance.There is also Gear Cutting, the role of cutting in gear processing, the key is to find a way to replace cooling and lubrication. At present, there are two successful dry cutting methods: high-speed dry cutting and low-temperature cold air cutting.
Water-soluble medium for gear quenching
So we now introduce a term - water-soluble quenching medium, do you know? Many times, there will be small cracks in the part of the rack, how is it caused? In fact, the main reason for quenching cracking of Steel Parts is that when the steel begins to undergo martensitic transformation (Ms point) and the cooling is too fast in the following temperature range, cracks will appear. For this reason, the goal of research and development of water-soluble quenching media is to reduce the low-temperature cooling rate of water. Considering that the Ms point of most structural steels is around 300 ℃ during cooling, the cooling characteristics of the quenching liquid are usually expressed by the cooling rate of the water-soluble quenching liquid when the workpiece is cooled to 300 ℃. The 300°C cooling rate of the water-soluble quenching medium can be used to grade the medium for the choice of heat treatment workers. There are many kinds of water-soluble quenching media, among which the cooling characteristics of PAG media are adjustable, and the concentration measurement and control is relatively easy. It is suitable not only for the overall quenching of the rack, but also for various induction heating quenching, and can be used stably for a long time. It is economical and convenient, so it is widely welcomed, and has become a water-soluble quenching medium widely used in the heat treatment industry at home and abroad.
What is the main reference for the selection of racks?
(1) Whether the gear's runout, full tooth depth, common normal, and tooth direction are qualified, whether the one-tooth swing and the pitch error are out of tolerance.
(2) Whether the installation distance of the gear and rack after installation is appropriate.
(3) The meshing clearance of the rack and gear should be 0.25*modulus.
(4) Whether the full tooth depth, runout, common normal, and especially the tooth direction of the rack are qualified.
Racks are also divided into spur racks and helical racks, which are used in pairs with spur and helical spur gears respectively; the tooth profile of the rack is straight rather than involute (flat for the tooth surface) , which is equivalent to an infinite cylindrical gear with an indexing circle radius
