Shot blasting brief 
Developed country in Europe and the United States has begun use blasting technology to finish surface treatment. The first one shot blasting equipment was born in 100 years ago, initially applyed in a variety of metallic or non-metallic surface to remove impurities and oxide or increased roughness. After years of development, blasting treatment process and equipment is already quite mature, its application is not only applyed in heavy industry factories but all area manufacture. After the world's first mobile shot blasting equipment born in the United States Bai Lai Taike (BLASTRAC) , the rapid expansion applications is widly used in the concrete surface treatment and coating of metal surface treatment on the ship deck, this guide the industry standard-setting and industry standard construction methods. Bai Lai Taike shot deal with the continuous improvement of equipment and technology is mature, shot processing technology and equipment has entered the European and American developed countries'road maintenance, bridge construction and airport maintenance and other fields. Application of the Chinese in this regard but is still very small, only a small number of items used in blasting treatment process, while on the highway, municipal road and bridge waterproofing coating concrete terms, or a blank. HKSC Shot,the shot blasting machine manufacture want to take this article to deal with this new technology introduction to the highway blasting, bridge maintenance and construction projects with colleagues,and look forward to this new technology, access to technology promotion.Shot blasting machine now has been the important equipment for industry casting or steel atructure technology.
Five anti-corrosion measures of steel shot blasting machine
 Weathering steel. Corrosion resistance superior to steel for general structure of steel called weathering steel, generally containing phosphorus, copper, nickel, chromium, titanium and other metal, the metal surface protective layer to improve corrosion resistance. shot blasting machine, The low-temperature impact toughness of structural steel than the average good, the implementation of standards as "weathering steel welded structure" (GB 4172-84).
2 hot-dip zinc. Hot dip galvanized steel after blast cleaning is about 600 ℃ high temperature components immersed in melting of zinc solution, attached to the surface of zinc coating of steel components, zinc plate thickness on the following shall not be less than 5mm 65μm,on the plate is not less than 86μm, to serve the purpose of corrosion. This method has the advantage of long life durability, production and industrialization of high and stable quality. Hot-dip zinc rust first working procedure is the acid, then wash. shot blasting machine, The two were working procedure will not completely leave a hidden corrosion, avoid design fit with the surface of the component phase in order to avoid cracks in the surface fit does not completely pickling or acid wash the net. The ends of tubular components should be allowed to open, both ends of the closure will cause the air expansion tube burst Ershi head plate, causing accidents; one end of the closed fluid circulation is poor zinc, easy to accumulate in the tube.
3 thermal spray aluminum (zinc) coating. This is a hot dip zinc corrosion and the effect of very long-term corrosion protection method. Specifically, this first surface of the steel structures for sand-blasting, the surface exposed to metallic luster and beat Mao. Then acetylene - oxygen flame will continue to send aluminum (zinc) wire melting, blowing with compressed air attached to the surface of steel members to form a honeycomb of aluminum (zinc) coating layer (thickness of about 80μm ~ 100μm). Finally, paint coatings, shot blasting machine, such as closed pores, forming composite coatings. This method can not tubular components of the wall construction, which must be done at both ends of tubular member closed airtight, so that the wall is not corrosive. Advantages of this technology is adaptable component size, component size and shape is almost unlimited. Another advantage is that this process is the local thermal effects, bound, and thus will not produce thermal deformation. Compared with hot-dip zinc, disadvantage of this method is less industrialized, blasting spray aluminum (zinc), labor intensity, quality, vulnerable to mood change operator.
4 lacquer coating. Anti-corrosion coating method as a general long-term corrosion protection method. It is a low cost, but the relatively high cost of maintenance. The first step in construction by coating rust. Quality depends on a thorough rust coating, the coating generally more demanding shot blasting with sand, exposing the shiny metal, remove all the rust and oil. Site construction manual rust coating available. Coating should be selected considering the surrounding environment, different coatings on the corrosion of different conditions have different tolerance. Generally primer coating, paint and finish among the points. shot blasting machine, Powder primer with more than a small binder, film roughness, and steel and strong adhesion, the role of the middle of paint is to increase the thickness of the coating to enhance the shielding performance of the coating system, the middle of the primer and finish paint have good adhesion. Paint the base material and more glossy film that can protect the paint from corrosion, and can wind of. Should pay attention when choosing different paint their compatibility. Construction of the coating to have the appropriate temperature (5 ~ 38 ℃ between) and humidity (relative humidity less than 85%). Coating less dust construction environment, component surface can not have condensation. Within 4 hours of painting must not rain. Coating usually do 4 to 5 layers, total thickness of dry paint film can be Our compamy has passed ISO9001，All equipment we produce, from
design, manufacture, installment, debugging to payment approval
according to system stipulation procedure execution, and undertakes
the complete sponsibility, all design paper must after the customer
approval, fully according to the user in the entire process the
opinion, and accepts the user surveillance;
1st, our company has the rich experience in the project contract
aspect, can definitely complete the entire project and guarantees the
product quality on time with high quality;
2nd, we will send the experienced personnel to be responsible for the
work to the scene and to participate in the debugging;
3rdour company is free responsible for the user training 3-4
operator, the training content: The equipment operation, the
machinery and the electric appliance service and the explanation
user proposed technical question After the maintenance expiration,
we will benefit supplies each kind vulnerably, the fitting;
4 th We will provide the following technical document to the user:
Equipment base compilation, electrical schematic diagram,
equipment use and maintenance instruction, equipment certificate,
approval report;
5th The quality warranty period will be after the date signing
(chapter) by the equipment official approval one year. In the
warranty period if the components to damage is the user responsibly,
the repair replaces the fitting the expense to undertake by the user. If
it is the quality question, our company replace them for free. After
the nature guarantees the expiration , we still supply life-long
post-sale service.
二、Post-sale service
1st, the quality guarantee:
The supplier supplu post –sale service in 12 months (vulnerable is
anexception) from the approval qualified date;
2nd, the equipment appears the breakdown in the use process, the
supplier give the response in one week, assists the consumer to fix
the equipment failure;
3rd, the equipment installs debugging period in the consumer, the
supplier related technical personnel scene service and the free
training consumer operation serviceman;
4th, the supplier has sufficient high quality, the superior price, the
variety is complete vulnerably matches the spare parts for the
consumer’s ordering when selects, the supplier will be able to
provide the omni-directional high-quality service;
thickened to 200 ~ 300μm.
5 Cathodic Protection Act. More active in the steel surface, additional corrosion of the metal to replace steel, commonly used in underwater or underground structures.
Protective coating because of its easy construction,shot blasting machine,? corrosion is effective, and widely used. The corrosion of steel bridge coating used to protect the general law, and formed their own rail and road sectors recommended industry standards.
Shot blasting machine and the type of grinding method
 Shot blasting equipment sales center ?Website:http://www.hk-speed.com/
1, rotary grinding method: rotary grinding method is a good piece installed in the grinding tank, grinding stones, abrasives, water to set in the turning motion, ,shot blasting machineso that movement of the surface layer of material to carry out the processing method of light decoration. This grinding method is more suitable to small parts and a number of varieties of small batch grinding workpiece
Second, vibration grinding method: vibration grinding method is a good piece installed in the grinding tank, grinding stones, abrasives, water to the vibration due to vibration generated using grinding stone and the workpiece relative motion between the poor, the processing method for grinding. Ruled out the rotary grinder produces a net space of the tank 100% of the grinding solvent. This grinding method to improve work efficiency than the rotary grinder 3 to 5 times, and the workpiece to be machined without playing mark, deformation and so on. Is widely used grinding methods.
3, centrifugal grinding method: ordinary high-speed rotary rotary grinding machine when the material (mixture) will be around the grinding groove around the workpiece and the grinding stone is no relative movement, so no difference in relative motion, will be greatly reduced abrasive. The centrifugal grinding method in the turret disk of the rotary axis fitted equidistant from several grinding groove, to planetary rotation,shot blasting machine, giving the centrifugal force, material will be surrounded by centrifugal effect of rotation in the cylindrical tank wall side, turn grinding a circular rotating outer plate, grinding groove reversed once the material to the grinding tank space and the upper part of the contact rotation direction. Material due to centrifugal force of the pressure and forced flow velocity, so that material in the production of free movement of grinding stone and the workpiece, because of poor flows relative motion, due to the existence of differences in relative motion, and thus abrasive. Rotation speed of 140 ~ 180r/min, and the rotational speed difference proportional to the relative motion and centrifugal force will increase. The rotary abrasive grinding machine over 60 times the vibration mill 5 to 8 times. Centrifugal mill grinding capacity is very good, showing great grinding force. More applications in watches and clocks, electronics, electrical components and other precision mechanical polisher, especially for the small piece of ground.
4, the water vortex grinding method: water vortex grinding method is installed in vertical or horizontal surface of the cylindrical tank mounted grinding stone grinding, water, abrasive, with the trough of the rotary grinding, grinding stones formed because of centrifugal force delicate and has a rigid abrasive layer. In the ground layer into the workpiece,,shot blasting machine will produce poor relative motion with grinding stone to form the high efficiency of the abrasive.

Shot blasting machine application and the principle of introducing
Shot blasting machine, use the blast wheels thrown high-speed steel shot clean up or strengthen the casting workpiece surface.

Introduction of metal surface treatment technology machinery - shot blasting machine

Steel shots is sent to high-speed rotating wheels, via centrifugal force to throw the high-speedhit hit the steel part surface, to get rid of the dust, the process is called shot blasting. Using compressed air to spray steel shot or glass balls to the spare parts on order to remove oxide and other contaminants in the process is called sand blasting. Both processes can make the part surface stress, silicon powder and no pollution to environment.
Shot blasting machine main uses are as follows:
① to part surface stress can increase their stress corrosion fatigue strength and tensile capacity;
② to correct the distortion of thin wall parts;
③ replace the normal hot and cold forming processes, large thin-walled aluminum components for molding and processing, not only to avoid the part surface residual stress, and the availability of beneficial stress on the parts.
It should be noted: treated by shot peening or shot blasting the parts temperature not too high, otherwise stress will go away in the high temperature, thus losing the desired effect. They use parts of the material by the decision of the temperature, iron and steel parts for the average is about 260-290 ℃, aluminum parts only 170 ℃.

1.1 Abrasive Types

(1) steel shots

The hardness of the steel balls are generally HRC40 ~ 50, processing of hard metal, the hardness can be increased to HRC57 ~ 62. Their toughness is better, life is a cast iron pills several times, wide range of applications.
(2) cast iron pills

The hardness of cast iron pills HRC58 ~ 65, very crisp, very easy to break, life is short, applications are not widespread. Mainly used where high strength requirements Shot.

(3) Glass shot

The hardness of the glass pill lower than the first two balls, is mainly used for stainless steel, titanium, aluminum, magnesium and the other does not allow iron contamination. Shot in the steel can be made after the second treatment time by, to remove iron contamination and reduce the surface roughness of parts.

Shot blasting machine how to repair and maintenance

Maintenance, maintenance and security

Although the company is doing its best to improve our quality of shot blasting equipment, parts of life we wear, projectiles schematic design and thus reduce the wear resistant parts, ejection process in the control of projectiles, is committed to providing sufficient spare parts and other wear parts made gratifying professional achievements, but because of the characteristics of shot blasting machine itself, in order for your shot blasting equipment to maintain efficient, continuous operation, we still want users to collaborate with us together in good maintenance and safety.

Day maintenance and repair

⑴ shot blast wheel motor device and a fixed availability of loose bolts;

⑵ shot inside the wear resistant parts, and promptly replaced;

⑶ the access door is closed;

Whether the phenomenon of pipeline leaks ⑷ dust, dirt or dust in the bag whether or not broken;

⑸ separator filter sieve and timely availability of sediment removal;

⑹ electric control valve is closed for the pill;

⑺ shot indoor wear protection plates;

⑻ the limit switch status is normal;

⑼ console Xinhao Deng is working properly;

⑽ clean the dust on the electrical control box.

On maintenance

⑴ check all parts of the bolt joints fixed situation;

⑵ check the transmission site is functioning properly, and lubricating the chain;

⑶ Check fan, air duct of the wear and fixed the situation.

Quarter of maintenance and maintenance

⑴ check bearings, electric control box good condition and lubrication or oil;

⑵ check the blast wheel abrasion wear protection plates;

⑶ check motor, sprockets, fans, screw conveyor with a fixed bolt and flange

Then the close of;

⑷ to the blast wheel bearing replacement main bearing seat high-speed grease.

Years of maintenance and maintenance

⑴ check all bearing lubrication, and to add new grease;

⑵ overhaul bag filter, if damaged, replace the bag, if the bag is too sticky gray wash;

⑶ repair all motor bearings, as the case may change in time;

Welding ⑷ replacement or projectile protection district board.

Regular maintenance of the machine should be

1. Check blast cleaning indoor high manganese steel guard plate, plates and other protective wear-resistant rubber sheet, if found to wear and tear, should be replaced immediately to prevent the bullet Breakdown Room

Body wall, and fly out of room in vitro wounding;

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Danger! Internal inspection to enter the chamber body, it must cut off the device with the power and listing instructions.

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2. Check the elevator up tight situation, relaxation time should be up tight, so as to avoid accidents;

3. Check the shot with the test situation. Once a machine has a larger vibration, immediately stop the machine work, check the blast wheel wear resistant parts and impeller

Emphasis, and to replace damaged parts;

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Danger! 1) Open the front cover of blast wheel cleaning equipment should be the total power supply cut off.

2) The blast wheel is not completely stopped rotating, non-open cover.

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4. Regular lubrication equipment, motors and bearings of all. Lubrication and lubrication on the number of parts in detail.

5. Regularly add new bullet

As the projectile will wear during use, broken, should be regularly added a number of new projectiles. Especially when clean-up and the quality of the workpiece is not clear when the volume is too small projectiles may be an important reason;

6. Install blast wheel blades should pay attention to a group of eight blades not more than 5 grams of weight difference, and always check the blade, and directed set of sub-balls round the wear for timely replacement.
HKSC SHOT BLASTING EQUIPMENT
May 1st,1999