As we all know, the quality of pare parts will effect the shot blasting machine service life, maintenance cost and blast processing cost. So the spare parts with good quality will generate profit for customers, on the contrary the poor quality spare parts will bring lots of trouble for customers.
Blast wheel
Component
Blast wheel, also known as blast turbine or abrators, are one of the essential components of all types of shot blasting machines. Depending on the amount of cleaning required by the customer and the size of the workpiece, the number of blast wheels required varies. The shot blasting machine consists of seven parts:
impeller
blade （8pcs）
distributor
control cage
side guard plate
top guard plate
rear/ front guard plate.
Feature
Among them, the blades in the blast wheels are made of high chrome wear-resistant materials, so that the weight difference of the blades is controlled within 3 grams, which greatly reduces the noise of the operation of the blast turbines, and prolongs the service life of the wear parts. The blades can be quickly loaded and unloaded, because the blades of the blast turbines are inserted from the center of the impeller, and the blades are fixed by centrifugal force during the rotation of the impeller, so there is no need for any clamping tool. When removing the blades, they can be easily removed from the center of the impeller by simply tapping the outer end of the blades. The impeller ensures a well-balanced operation of the blast wheel and at the same time greatly reduces the noise of the equipment.
The thickness of the guard plate can reach 70mm, and the top guard plate and the side guard plate can be used interchangeably between the shot blasting machines with different turns to increase the service time.
Funcation
The blast wheels are available in different operating powers: 7.5kw, 11kw, 15kw, 18.5kw, 22kw, 30kw, 55kw, 75kw. According to the different workpieces needed to be cleaned and the customer’s cleaning requirements are varied, the most suitable power blast wheel should be selected. When the blast wheel is in operation, the steel shots into the blast wheels from the inlet pipe. The steel shots through the control cage flying out, thrown to the control cage of high-speed rotation of the outside of the blade, the blade is further accelerated, projected to the surface of the workpiece to be cleaned. Because the distributor and blade for synchronous rotation to ensure that the steel shots to the blade of the vibration-free transmission, thereby reducing the wear and tear of the blade.
QGMA adopt die steel CNC precise processing and low pressure vacuum heat treatment to processed the blade, the processing accuracy can reach 0.01. That made every blades are uniform wear and keep good dynamic balance. The hardness can up to HRC50-55. The guard plate in blast turbine are designed according to steel shot and blades rotating track simulation.
As an important surface treatment equipment, abrator plays an important role in many industries. Through the impact friction on the surface of the workpiece, the abrator realizes the goals of removing the surface oxidation layer to improve adhesion, improving surface quality and controlling surface roughness. At the same time, the abrator can also improve product quality and production efficiency, and a wide range of applications, for product quality and production efficiency to make great contributions.
How to replace parts?
Abrasive – Steel Shot / Cut Wire Shot
What material is used for shot blasting?
The shot blasting machine needs metal abrasives to work together in the shot blasting work, both are essential. The most commonly used materials on metal surfaces are abrasives. They are sharp and hard materials used to grind softer surfaces. They are mechanical surface metal treatment materials.
Abrasives can be divided into metal abrasives and non-metal abrasives. According to the production method, it is divided into natural abrasive and artificial abrasive. According to the hardness, there are two categories: super-hard abrasive and ordinary abrasive.
What are the common metal abrasive？
Metal abrasives include steel shot, steel grit, iron shot, iron sand, stainless steel shot, stainless steel sand, steel wire cut shot and stainless steel wire cut shot, etc. They have a wide range of application value. The cleaning site of metal abrasives has low dust pollution, high visibility, and cleaning quality. It is easy to be guaranteed, and the work efficiency is high. It is widely used in the mechanical surface casting industry.
The scope of application of metal abrasives
Shipbuilding industry: chain anchor chains, chain bolts, valves, engine connecting rods, etc.;
Construction industry: packaging for subway high-strength protective railings;
Petroleum industry: crankshafts, sucker rods, mine drilling rigs, etc.;
Aviation industry: aviation blades, axles, landing gear, etc.;
National defense industry: forwards, camshafts, compressor blades, etc.;
Machine tool industry: milling cutters, punching tools, etc.;
Automobile industry: train wheels, stabilizers, springs, crankshafts, gears, leaf springs, etc.;
How to choose the suitable abrasive?
How to choose the suitable abrasive for shot blasting machine? How to buy high-quality and low-cost abrasives? In fact, each type of shot blasting machine equipment requires different types of abrasives.
If the final type of abrasive needs to be determined, it also depends on what kind of workpiece the shot blasting machine is blasting and the desired shot blasting effect. The size of the workpiece is different, and the abrasive used is also different, so the specific type of abrasive used depends on the situation.
The larger the abrasive diameter, the higher the surface roughness of the workpiece, but the shot blasting efficiency is also high; the abrasive diameter should be selected according to the surface roughness of the part. The shot blasting efficiency of other irregularly shaped steel shots or cut wire shots is higher than that of spherical shots, but the surface roughness is also higher.
Choose the abrasive with moderate hardness to achieve good application effect. Suitable abrasive hardness and excellent resilience, so that the abrasive can be projected to every part of the shot blasting machine chamber, and then reduce the blasting time.
If the abrasive hardness is too low, it will be easily deformed and broken during the shot blasting process, and then consume energy, which will affect the shot blasting effect; if the hardness is too high, it will be brittle and fragile, forming a consolidated sharp fragment, and the blade will wear quickly. High energy consumption also affects the shot blasting effect.
The effect of the shot blasting machine is related to the quality of blast wheel and the metal abrasives you choose. The above is simple introduction to the abrasive of shot blasting machine. If you have any questions please visit our official website or email to us for more information.