About sprocket machining process what is sprocket, that what will be its machining process?
Various process sprocket processing though not identical, but generally contain blank shape, tooth form and three main heat treatment process.
Chain for engineering, in addition to the chain tension of work also included such as hoist hopper, accessories, chains of gravity and other forces.
Adopt the method of engineering mechanics and the axis of bending moment and torque, and separately by considering the specific application of conditions on the coefficients.
The size of the sprocket wheel hub hole with the match the size of the diameter of axle.
Trunnion sizes are determined by the factors such as strength, stiffness and structure.
General role of the shaft bending moment and torque, so the choice of the shaft must first calculate the bending moment and torque, this you must know the chain tension, and other axis force and bearing spacing, etc.
Sprocket machining processes: cast steel and cast iron chain wheel surface hardening treatment has high frequency quenching and flame quenching two kinds, cast steel sprocket processing method is roughly the same as the steel.
For cast iron chain wheel surface hardening treatment should be paid attention to when its particularity.
As a result of the cast iron matrix is ferrite, graphite diffusion, less so quenching difficult.
For hardening, should make its carbon can quickly dissolve when heated in the austenite.
Sprocket processing process should inspect the size of the sprocket wheel size, structure, heat treatment requirements, tooth surface finishing methods and final product batch, etc. Various factors and decide.
For small size, chip structure of chain wheel, and the ring gear forming adopts stamping process;
Size is larger, and has a hole in the disk sprocket, forging blank, turning processing, and then on the machine in gear tooth department;
And shaft axle sprocket, bar cutting, turning processing axis, and then in the tooth on the machine gear department;
Big sprocket, casting or made of thick steel plate after flame cutting blank, can also be welded into chain wheel blank, and then processing gear.
This carbon is best, the pearlite compound carbon matrix in carbon content best at 0.
4% to 0.
9%, within the scope of the nodular cast iron and pearlitic malleable iron graphite spheres and block, so the gap effect is small, less risk of quenching crack.
For general cast iron, the must for low temperature tempering after quenching, to eliminate the quenching deformation.
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