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Current location:HOME > NEWS【Industry news】How to identify the shot blasting machine
Date of issue:2019/4/8
Shot blasting cleaning machine of the market in today's society is very chaotic, how to identify the stand or fall of shot blasting cleaning machine and quality problem has become the focus of a lot of friends, is really a good machine brings us not only the efficiency of the double but the long-term efficiency and faith in the machine, the following is a simple introduction by the author shot blasting cleaning machine recognition problem, want to need some friends to help.
First of all, it is known to all that every shot blasting machine must go through the technical inspection department for the factory safety inspection and a series of related inspection and inspection, after passing the inspection inspection department will provide each machine with a unique certificate of quality, only such products can be good products. Secondly, every machine must go through relevant experiments before it can be operated. As long as any unqualified product is found, it should be repeatedly inspected until the product is qualified or eliminated. In packaging and transportation is also related to the provisions to restrict the quality of the product, a perfect shot blasting machine must be perfect in all aspects, such a product is what customers need, is the customer to spend money to buy the product.
I believe that you read the above for the choice of shot blasting cleaning machine must have their own views, of course in the purchase of such a machine must go to the formal and guaranteed place to buy, here after sales service and so on will be a little better is also responsible for their performance. As long as the above mentioned some requirements to be able to determine the basic quality of this shot blasting machine, to a reputation and reputation of the place to buy is also very good oh, wish every friend can buy the ideal shot blasting machine.
【Industry news】The main types and types of shot blasting machine classification
Date of issue:2019/4/8
Shot blasting machine is mainly drum type, crawler type, rotary table type, trolley type, hanging chain type, roller pass type and other products, complete line equipment is mainly steel pretreatment line, including feeding, preheating, shot blasting, painting, drying, unloading and other processes.
1. Drum shot blasting machine:
The drum shot blasting machine mainly USES the high speed rotating impeller to throw the projectile to the workpiece which is flipped continuously inside the drum, thus achieving the purpose of cleaning the workpiece, which belongs to the casting machinery scope. It is suitable for sand cleaning, derusting, peeling and surface strengthening of castings and forgings under 15 kg in various industries. Drum shot blasting machine is suitable for cleaning all kinds of castings and forgings that are not afraid of collision and scratch. It is an ideal equipment for cleaning residual sand and oxide skin on the surface of workpiece in small heat treatment workshop.
2. Caterpillar shot blasting machine:
Crawler shot-blasting machine is suitable for various kinds of large and medium batch production of the surface of the workpiece rust removal or shot-blasting strengthening, cleaning the workpiece must be not afraid of collision of single weight under 150kg castings and heat treatment parts, this machine can be used alone, but also can be used with the distribution line. Automatic: the workpiece in the drum of rubber tracks, the operator press the "run" button, blasting room door shut, pneumatic airless shot blasting, crawler running forward, a rolling workpiece continually, efficient power device will be shot blasting high-speed projectile are rolling workpiece surface, artifacts can be completely evenly is cleared. The steel shot flows into the screw conveyor through the slide hole on the track, and then the steel shot is transported to the bucket elevator, which is lifted to the separator by the bucket elevator. After being separated, the steel shot is stored for use. After the shot blasting, the door of the shot blasting chamber opens automatically, the track reverses and the workpiece is discharged. Application scope: cleaning and polishing of die casting, precision casting, precision forging, etc. Remove the surface of heat treated parts, castings and forgings. Strengthening of the spring. Fasteners derusting and pre - treatment.
3. Hook shot blasting machine:
Hook type shot blasting machine as a standard model of the shot blasting cleaning machine, the working cylinder from 900 to 1300 mm diameter, height from 1300 to 2200 mm. The standard machine with 2-7 throw the head and the biggest load of 10000 kg, and this kind of shot blasting machine is of very high production efficiency, flexibility of span is also quite big, is the ideal blasting equipment, and easy to operate, just going to deal with the workpiece loading machine, press the start button, after a short time (usually for 5 to 7 minutes), and to complete the whole process of cleaning, remove all dust and residual pill, Mainly suitable for surface treatment of all kinds of medium and large castings, forgings, welds and heat treatment parts, including fragile and irregularly shaped workpiece.
4. Rotary table shot blasting machine:
Rotary table shot blasting machine is mainly suitable for small and medium-sized workpiece surface cleaning mass production, this specification of equipment is suitable for engine connecting rod, gear, diaphragm spring and so on, widely used in casting and automotive manufacturing industry, with high production efficiency, good sealing effect, compact structure, easy loading and unloading parts high technical content.
5. Steel plate pretreatment line:
Steel plate pre-treatment line shot blasting machine is a kind of cleaning welding structural parts, H steel, steel, mesh, steel plate multi-functional steel processing line. Shot blasting machine layout form for multi-angle, USES the advanced unit in the world set blade efficient shot blasting machine, forced outward high-speed projectile with a dense, blow in the original state of steel parts, stereo, a full range of cleaning, make the steel on the surface of the rust layer, welding slag, scale and dirt falls off quickly, get bright and clean surface with certain roughness, improve the adhesion of paint film and steel surface, and improve the fatigue strength and corrosion resistance of steel, improve the quality of steel, and prolong its service life. The main functional parts of the machine are the cleaning room, the indoor conveying roller table and the inlet and outlet conveying roller table, the shot blasting machine, the projectile circulation system (including the elevator, separator, horizontal and horizontal spiral conveyor, the projectile recovery mechanism and the pellet feeding pipeline), the purging mechanism, dust removal, electrical control and other components
6. New shot blasting machine:
Hull large tank automatic shot blasting machine has very high environmental protection and cost - effective. It USES a hidden shot peening system, the use of high-performance pushed steel shot blasting device quickly the ground and surface of steel plate, achieve the purpose of cleaning, divided into two kinds of model of vertical and horizontal, vertical mode of shot blasting machine is mainly suitable for cleaning tank, water tank maintenance, hull cleaning, clean and dome roof and spherical shape object of inside and outside wall cleaning, horizontal pattern of shot blasting machine is mainly suitable for paint removal, cleaning of ship deck concrete, the anti-sliding performance of pavement and bridge the cleaning of the oil recovery, asphalt, remove the marker line cleaning, airport road way glue and line removal and dust-free concrete problems such as maintenance. Both vertical and horizontal cleaning mode shot blasting machine, can be quickly dismantled and installed in 20 minutes. The lifting system of the vertical mode shot blasting machine is installed on the power fixture and placed on the top of the object being cleaned. The operator controls the machine and the elevator through the wireless remote control, so that the shot blasting machine can move up and down conveniently and left and right. Moreover, only one person can control the production, which is very convenient, reducing labor and improving production efficiency. Steel pellets and contaminants enter the separation chamber. A dust collector collects dust and contaminants. The available shot blasting is returned to the storage hopper for circulation. There is a cylinder under the dust collector. It is easy to dispose of waste. Shot blasting machine cleaning can reduce the cost to only a few cents per square meter, greatly save the cost of production.
Net belt shot blasting machine is a kind of cleaning disc, sheet, casting, body, structural parts of the functional shot blasting cleaning equipment. It can apply strong shot blasting to the surface of the original state of steel and casting, remove the rust layer, welding slag and oxide skin, so as to obtain a uniform gold luster, so as to improve the coating quality of steel and anti-corrosion effect. Net belt shot blasting machine is mainly used in automobile, aerospace, railway and machinery manufacturing industry. The continuous metal mesh belt shot blasting machine designed and built by di sha group allows the parts to rotate through in an automatic, continuous and uninterrupted way to receive shot blasting cleaning in multiple directions. The hub type shot blasting head maximizes shot blasting efficiency and avoids the damage to the surface of parts due to the collision between parts.
Blower tower barrel inside and outside wall shot blasting cleaning machine, at the same time, it can clean up large pipe internal and external wall, its characteristic is low cost, high efficiency blasting technology is used to clean the wind turbine tower drum inside and outside wall is an ideal process, this machine is mainly used to clean up the large tube and steel tank inside and outside wall, make the pipeline and the surface of the steel can eliminate scale and the old paint adhesion material, have certain after the surface roughness of the surface coating layer can be made to improve the adhesion of the paint film, and improve the fatigue resistance and corrosion resistance, improved the quality of workpiece, and prolong its service life.
Shot blasting machine for cylinder inner wall
Shot peening technology is used to clean the cylinder wall is a new kind of net bottle wall shot blast cleaning machine, it is mainly using compressed air as the power, will have a certain kinetic energy projectile speed, spray the cylinder wall, when the cylinder located in gun chamber, the spray gun will be automatically into their own bottles and spray gun to move up and down inside the cavity, complete the bottle wall jet cleaning in all directions, is choose type cylinder industry. It has the following advantages:
1. Clean the oxide peel in the internal cavity of the vial and the attachments generated in the stretching manufacturing process to obtain a clean metallic color. After treatment, the inner surface of the workpiece reaches sa2.0-2.5 (gb8923-88).
2. Eliminate the residual compressive stress generated by cylinder firing and tension calendering, and improve the limit of cylinder fatigue strength and resistance to stress corrosion and cracking;
3. Improve the quality of cylinder cavity, which is conducive to improving the anti-corrosion effect, permanent wear-resistant corrosion and permanent service life of shock and vibration resistance;
4. This machine can realize automatic bottle loading, transportation arrangement, compression positioning, turnover 90°, spray gun sticking into the bottle, cylinder automatic rotation, spray gun moving up and down to clean the cylinder and other automatic cleaning working modes; With perfect projectile circulation system and advanced dust removal system, it is the only machine in China that can clean the inner wall of small bottleneck.
Road blasting machine working principle:
Road surface shot blasting machine working principle is the pill by the method of mechanical material (steel shot or sand) and certain Angle ejection at high speed to work on the surface, make pill is expected to impact working surface, then the airflow inside the machine through the form a complete set of vacuum cleaners cleaning effect, the impurities of shot blasting material and clean up down separately recycle, and the technology of shot blasting material can be used again. The machine is equipped with a dust collector, to achieve dust-free, pollution-free construction, not only improve efficiency, but also protect the environment.
Road blasting machine working conditions
1. Roughness of working face < 20mm; No water and relatively dry; < 25 ° slope
2. Ambient temperature: -20℃ ~ 60℃; The surface temperature of the steel plate is more than 3℃ above the dew point
3. Humidity: a. the relative humidity of the steel surface during shot blasting shall not be more than 90%
B. relative humidity of concrete shot blasting shall not be more than 95%
4. Altitude: 0 ~ 3000m; Do not operate in rain or snow
【Industry news】Shot blasting machinery industry research report
Date of issue:2019/4/8
I. industry overview
Since the 1930s, the American company made the first shot blasting machine in the world, the global shot blasting machine industry has developed rapidly. Foreign high level shot-blasting equipment companies are concentrated in Europe and the United States, Europe and the United States shot blasting machine technology is advanced, representing the highest level of shot blasting machine industry.
The consumption concentration of global shot blasting machine market is higher. In 2010, the total consumption value of the world's top eight shot-blasting machines accounted for three-quarters of the world's shot-blasting machine production, and the total consumption value of the top three shot-blasting machines was nearly half of the world's shot-blasting machine output value.
Since 2003, because of the development of equipment manufacturing industry, the demand for shot blasting machine in China has developed rapidly. In 2010, the consumption of shot blasting machines in China accounted for 20% of the total production of metal processing shot blasting machines in the world, making China the world's largest market for shot blasting machines.
Production of shot-blasting equipment in China began in the 1950s, largely in imitation of Soviet technology. In recent years, with the rapid development of China's automobile, motorcycle, household appliances, electronic communication and other industries, especially the machine tool industry and foundry industry, shot blasting and cleaning industry has brought rare opportunities. In 2005, the output of shot blasting machine in China was 22,789 sets. By the end of August 2011, the output of shot blasting machine in China had reached 110,000 sets, with an average annual growth of 26%.
China national association of machinery industry is the self-regulatory organization of shot blasting machine industry. To formulate industry development plans and industrial policies for the government; To assist in the management of the national standards of the industry, responsible for the revision and management of the standards of the industry; To carry out industry statistical surveys; To participate in quality management and supervision; Scientific and technological achievements appraisal of the industry.
Ii. Main products and functions of the industry
The main products of shot blasting machine industry can be divided into separate shot blasting machine and complete set of sandblasting equipment.
(1) shot blasting and cleaning machine
Shot blasting machine is a casting equipment that USES the high speed shot from the shot blasting machine to clean the surface of castings. The steel shot is sent to the rotating disc at high speed and the effect of centrifugal force is used to make the steel shot hit the surface of parts at high speed and achieve the purpose of lighting. Shot blasting cleaning machine makes the surface of parts produce compressive stress, and no silicon powder, less pollution to the environment.
Shot blasting machine can be used to clean castings, forgings and welds, remove the inclusion of the workpiece surface and oxide skin, a wide range of applications.
(2) sandblasting equipment
Sandblasting is the process of using compressed air as the power to form a high speed jet beam, such as high-speed jet material to the surface of the workpiece to be treated, using the impact of high speed sand flow to make the appearance of the surface of the workpiece surface changes, to clean and coarsening the matrix surface.
The whole set of sandblasting room consists of sandblasting studio, sandblasting system, abrasive recovery system, dust removal system, workpiece conveying system, lighting system, control system, lifting door and other parts.
3. Upstream and downstream analysis of the industry
Shot blasting machine industry upstream steel (steel plate, profile) mainly raw materials suppliers, downstream industries including machinery, cars, planes, motorcycle, railway, shipbuilding, container, bridge, chemical industry, construction and other manufacturing of castings, forgings, steel, steel deoxidization and rust removing, blast cleaning and surface strengthening.
(I) upstream industry
The main raw materials needed for the production of shot blasting machine are steel plate, section steel, etc. Therefore, the steel industry is the upstream industry of shot blasting machine industry. The domestic steel plate market fluctuates greatly in recent years, showing a downward trend as a whole, the price of steel profile is stable at about 5300 yuan/ton, and the price of plate is about 3500 yuan/ton on average.
At present, the domestic steel industry overcapacity, product prices stable at a relatively low level, and adequate supply, shot blasting machine industry has a greater bargaining power on the upstream.
(2) downstream industries
At present, with the maturity and development of technology, shot blasting cleaning equipment has gradually got rid of the category of "casting machinery", and entered a new development field, the application scope is more and more extensive. Its main applications are as follows:
1. Metal surface cleaning
Surface cleaning of various castings. The shot-blasting equipment is firstly used to remove the sand on the surface of cast steel and cast iron and remove the oxide skin. Almost all steel castings, gray castings, malleable steel castings, ductile iron castings, etc. are subject to shot blasting. This is not only to remove the oxide coating and sticky sand on the casting surface, but also an indispensable preparation process before the casting quality inspection.
Blasting and peening of forgings and heat treated parts. The surface of most metal workpieces will be oxidized during the heat treatment of forging. This oxide scale skin has a serious destructive effect on the chemical coating derusting of parts, which needs to be cleaned by blasting and peening. For the parts that need cutting, the removal of oxide skin is a necessary condition to improve the service life of the cutting tool and to maintain the precision of the machine to control the size of the forging blank so as to obtain the best cutting state. This is even more important for automatic machining machines. The combined effect of removing oxide peel and strengthening the workpiece can be obtained by blasting and peening the workpiece after the final heat treatment. Almost most of the gears of cars and tractors are shot blasting after heat treatment.
2. Strengthening of metal workpieces to improve fatigue strength
According to the modern metal strength theory, increasing the dislocation density inside the metal is the main direction to improve the metal strength. Practice has proved that shot blasting is an effective industrial method to increase metal dislocation structure. This is very important for some metals that cannot be hardened by phase change (such as martensitic quenching, etc.) or need to be further strengthened on the basis of phase change hardening. Is an aerospace industry, automobile and tractor parts requirement, but more and more high reliability requirement, its important technical measures is to use cast shot peening raise the strength and fatigue strength of components, the main technical measures in this regard are: spring behind shot peening, improve the metal surface roughness of the surface peening processing, to obtain a certain metal surface coarse degree threw the shot peening processing, decorative coating of shot peening polishing.
3. Surface processing
Shot blasting technology has been developed into one of the main processing methods of metal surface processing, and grinding, polishing, etc. into the ranks of metal surface processing technology, and grinding, polishing than unique. It can be used for the surface reinforcement of cutting tools and cutting tools, to improve the metal surface roughness, to obtain certain metal surface roughness and decorative coating shot-blasting technicians.
4. Shot blasting forming
Shot-blasting combines the forming and strengthening of sheet metal, which has been applied to the manufacture of aircraft wings, fuselage and other thin shell components. Boeing aircraft in the United States adopts shot blasting technology, which not only saves the large press and reduces the manufacturing cost, but also improves the strength and stiffness of the thin shell components, which plays an important role in improving the load performance of the aircraft.
Iv. Industry scale and development space
In 2005, the output of shot blasting machine in China was 22,789 sets. By the end of August 2011, the output of shot blasting machine in China had reached 110,000 sets, with an average annual growth of 26%.
Source: national technical committee for standardization of foundry machinery
From the domestic consumption situation in recent years, China's consumption of polishing machine in 2005 is 20966 sets, by the end of August 2011, China's consumption of shot blasting machine has reached 103400 sets, an average annual growth of 31%, consumer demand shows an increasing trend.
As an environmental cleaning equipment, shot blasting cleaning machine production industry after the adjustment in recent years, the product structure and quality have been greatly improved. During the 12th five-year plan period, the country took the high-end equipment manufacturing industry as seven emerging industries, and the international market demand for China's mechanical and electrical products also showed a steady growth trend, which provided a broad market prospect for the shot blasting machine industry.
V. risks faced by enterprises in the industry
1. Macroeconomic risks
The production and sales scale of downstream manufacturing industries, such as casting industry, engineering machinery industry and construction industry, directly affects the market conditions of cleaning castings such as shot blasting machine, while the production and sales scale of engineering machinery industry and construction industry are greatly affected by the macro economy, which is obviously correlated with the macroeconomic fluctuations. If the main product markets of engineering machinery and construction enterprises are adversely affected by macroeconomic fluctuations in the future, it may lead to a decrease in orders and difficulties in sales. Therefore, enterprises in the industry face the risk of being affected by macroeconomic cycle fluctuations.
(ii) industrial policy risks
In recent years, with the state council about accelerate the development of the several opinions of the equipment manufacturing industry, the industrial transformation and upgrading plan (2011-2015), the state council on accelerating the decision of the cultivating and developing strategic emerging industries ", "automobile industry development policy" and other policies successively promulgated and implemented, the emerging engineering machinery, steel structure industry has strong support and the development of the car, and, in turn, led to the rapid growth of the blasting machinery industry. In the future, these stimulus and promotion policies may be adjusted, which will affect the shot blasting machine market, and enterprises in the industry are faced with industry policy risks.
(3) technology development risks
The global manufacturing market is highly competitive, new technologies are constantly developed and applied, and products are updated rapidly, which puts forward high requirements for the technological development of shot blasting machine, which must meet the needs of the market, timely and flexibly develop products suitable for the needs of the downstream market. If the industry enterprise fails to develop new products and cannot track the new technology to upgrade products as scheduled, the enterprise's market expansion plan and competitive advantage in the industry will be affected.
(4) production safety risks
The production mode of industrial enterprises is large-scale and automatic production. If the production is stopped due to the impact of accidents, it will have a greater impact on the production and operation. Although enterprise is equipped with complete safety facilities, set up perfect accident early warning and processing mechanism, the whole production process under control, little chance of safety accident, but still cannot be ruled out because of the imperfect equipment or process, storage, and improper operation or safety accident caused by natural disasters such as reasons, affect the normal production and operation.
【Industry news】China's development of large - scale casting machinery - shot blasting machine
Date of issue:2019/4/8
Large casting machinery is a point at present in China, it is also one of measure the standard of Chinese forging industry level, large casting machine workbench is metal melting into liquid and conform to the request must be poured into the mold, after cooling condensation, men get a booking shape, dimension and function of technology process of casting. Shot blasting machine table production is different from other technology features, mainly adaptability, need data and equipment, pollution environment. Forging production will produce dust, harmful gas and noise pollution to the environment, compared with other mechanical production technology is more serious, the need to adopt environmental protection measures to control.
Therefore, the development of large shot blasting machine casting profession is the foundation of carrying out China's high-end manufacturing, but also one of the pillar industries of the advancing national economy. In May 2009, the state council issued the equipment manufacturing adjustment and recovery plan, which clearly put forward the key points of carrying out serious technical equipment supporting large castings. As a key part of serious technical equipment, the worktable of large cast iron shot blasting machine has high requirements for internal stress, ability to adhere to the scale accuracy, rigidity, wear resistance, etc. Therefore, with more strict technical standards and safety standards, the quality and reliability of the large shot blasting machine table directly affect the service life and work functions of the supporting mainframe.
Industry insiders calculate that with the development of electric power, metallurgy, petrochemical, shipbuilding profession, the need for large castings will continue to increase. Large shot blasting machine table casting market needs will continue to rise. Although China's shot blasting machine casting industry has always been committed to stand on its own feet, it is far from the mature industry of the prosperous country. In recent years, the strong attack of foreign high-end brands has intensified the internal and external troubles of China's foundry industry. Therefore, if China's shot blasting machine casting industry wants to gain a foothold in foreign markets, it must start from product quality.
The technological level of shot blasting machine industry in China needs to be different
China's foundry industry is heading for a new period. This is not only a new beginning for China's foundry industry, but also a new stage for the transformation of forging industry from quantity to quality. Therefore, the machine table is the main propulsive force of forging industry, so the propulsive force can not be ignored.
At present, China's industrial development has achieved a certain effect, in the continued smooth development. China shot blasting machine industrial market a development speed in advance, shot blasting machine output has been added. However, this is only China's foundry industry in the industrial planning of the effect, this does not clarify that China's shot blasting machine industry is the world's shot blasting machine table occupation can not be compared.