Chinese PC Pump is a type of positive displacement pump which has a rotor rotating within a housing called a stator. The rotor is always metallic and the stator is made up of a rubber type of material. It looks somewhat like a screw thread–the fluid is between the cavities and the rotary motion of the rotor forces the fluid through from one end to the other. The liquid acts as the lubricant between the pumping elements, and it should not be run dry.
Our progressive cavity pump belongs to the group of rotating positive displacement pumps. They are self-priming, and due to their high process liability and suction capacity. They are often used for the continuous, gentle conveyance and precise dosing – in proportion to speed – of difficult media.
A Progressive Cavity Pump is a type of a positive displacement pump which has a rotor rotating within a housing called a stator. The rotor is always metallic and the stator is made up of a rubber type of material. It looks somewhat like a screw thread – the fluid is between the cavities and the rotary motion of the rotor forces the fluid through from one end to the other. In China there are many professional PC Pump manufacturers, and I truly recommend you Mingzhu.
Mingzhu company has special equipment production licenses for pressure vessel manufacturing (including installation, repair, modification) and GC2 pressure pipe installation qualification. In the future, Mingzhu adheres to pioneering and innovative and forge ahead, vigorously promote our product in diversification and intelligence, and provides high-quality, high-efficiency, energy-saving and environmentally-friendly products for new and old customers, we also and provides dedicated and customer-satisfying services.
We attach great importance to product quality, specialization, dedication and constant improvement. Aiming to become a world-advanced manufacturer of pump equipment, we have always upheld the development philosophy centering on “technological innovation and service improvement”. We have passed ISO and US API quality management certification.
As a new technology of oil extraction PC pump system has such features as broad adaptability, high efficiency and energy conservation and investment saving. The PC pump system consists of a down-hole single screw pump, ground driving equipment and electric control part. Looking for a reliable China PC Pump manufacturer? I truly recommend you Mingzhu, one of the most professional PC Pump manufacturers, they own the most advanced equipment to meet our customers’ requirements.
Tungsten carbide plates, also known as carbide strips or carbide sheets. They have shapes of rectangular and square. The main alloy ingredients of cemented carbide plates are WC and CO. They have extremely high hardness, wear resistance, high elastic modulus, good chemical stability, etc.
Wide Applications Of Tungsten Carbide Plates
The carbide plates have a high-pressure strength, high impact toughness, low expansion coefficient and thermal conductivity and electric conduction are similar to iron and its alloys. tungsten carbide plate is an excellent material for making high-temperature resistance parts, wear-resistant parts, anti-shielding parts, corrosion-resistant parts, suitable for making cast iron rolls and shaping cutter for high-nickel-red rolls, applied for silicon steel sheets, cold-rolled plates, production of wire drawing dies, wear-resistant parts, stamping parts, carbide automatic press mold cores, topping mode, such as top forging molds for screws, rivets, stamping molds. squeeze mold. punching mold.
Grade Properties And Applications
YG6
Fine grade alloy, with good wear resistance, used for processing blades, wear resistance parts
YG8
high bending strength, lower abrasion resistance than YG6A, suitable for manufacturing the form-cutter, wear-resistant consumable parts, etc.
YG15
Suitable for making stamping molds, wear-resistant parts, etc.
YG20
High bending strength, used for stamping dies.
YG20C
It is a fine grain carbide material, which has excellent wear resistance, high bending strength, anti-bonding ability, suitable for processing high-temperature alloys, stainless steel, high manganese steel and other materials.
XYMJ, which has more than 20 years of experience in tungsten carbide products and tools such as tungsten carbide dies, carbide nozzles, cutting tools, mining tools, carbide wear parts, provide high-quality tungsten carbide plates at affordable prices. XYMJ is a professional carbide factory with advanced, highly effective equipment and high-precision grinding machines. All the products must be strictly inspected with ultrasonic. The sizes of XYMJ tungsten carbide plates can be customized as customers’ requirements.
Advantages of XYMJ tungsten carbide plates
1. The purity of the raw material is above 99.95% and the physical properties of the plates are stable.
2. Using spray drying technology, the material uses high purity nitrogen protection with full sealing, effectively reducing the oxygenation possibility in the preparation process of mixed material.
3.The plate density is uniformly adopting 300MPa pressures, effectively eliminating the generation of pressing defects, and the plate blank density is much more uniform.
4. Excellent density, strength and hardness are in line with the standard.
5. Adopting low-pressure sintering technology, so that the pores inside the plate can be effectively eliminated and the quality is much more stable.
6. Using deep cold treatment technology to improve the internal metallographic tissue of the plates or strips, and the internal stress can also be greatly reduced, effectively avoiding the appearance of cracks in the cutting process.
The tungsten carbide blades and tips which are made of cemented carbide as the raw materials through fine finishing can be used as an industry blade, with excellent performance including high hardness, wear resistance, toughness and good corrosion resistance.
Advantages Of Tungsten Carbide Blades
1. The hardness is extremely high, up to Moh’s hardness of 8.9-9.1, which is 10 times higher than the hardness of 18K gold. The high hardness makes carbide blades have good wear resistance, not easy to appear scratches and deformation.
2.It has high brightness like a mirror, with highly polished, fully glow in the color and light like the gemstone.
3.The corrosion resistance of tungsten carbide blades is good. It does not change color, no rust, and the luster can be maintained for a long time, which are the other metals don’t have.
What Should Be Paid Attention To Using Tungsten Carbide Blades
The characteristics of the carbide material determine the importance of the safe operation of cutting carbide blades.
1. Blade installation
Before the installation, please clear the dust, chips and other debris on the bearing mounting surface in advance, keep the bearing mounting surface and the tipper clean.
a.To carefully put the blade on the mounting surface of the bearing, rotate the tip machine shaft to automatically find the insertion of the blade center.
b. Install the crimping block on the tipper blade.
c. Load the hexagonal bolt, fasten the screws in the hex wrench to securely mount the blade on the bearing.
d.After the blade is installed, ensure no loose and no deflection.
2. Safety protection
After the blade is installed, the protective device must be equipped before starting the predicted machine and acts as a real protective effect.
3. Working speed
The working speed of the tipper is limited to below 4500 rpm/minute. It is strictly forbidden to exceed the limit speed.
4. Test machine
After the blade is installed, it is necessary to operate for 5 minutes and carefully observe the operation of the argument and cutting machine. It is absolutely not allowed to have obvious loose, vibrations and other abnormal sounds.
5.Push the circuit board uniformly
In the cutting process, please push the circuit board that needs to be cut at a uniform speed, avoiding being too rapidly to push the circuit board. When the circuit board has severely collided with the blade, it will cause blade damage.
6.Blade storage method
It is strictly forbidden to write on the blade with an electricity pen or other scratches to prevent damage to the blade body. The blade of the cutter is extremely sharp, but it is very crisp, In order to avoid accidental damage, ensuring the blade does not touch the human body or other metal hard objects.
Regardless of iron, aluminum or steel, the blades will cut them into the desired shapes when machining. The tungsten carbide blades are made of cemented carbide as the basic materials which is an alloy material hard made with hard compounds of refractory metals and bind metal through the powder metallurgy process.
Material Performance Of Tungsten Carbide Used As Blades
The tungsten carbide blade, also known as carbide tips, mainly adopts the overall hard alloy as the matrix and it is fine finished through various kinds of production processes. Carbide blades have extremely high hardness and high strength, excellent high wear resistance, high elastic modulus.
The tungsten carbide is distinguished according to the grain size, which can be divided into ordinary type, fine grain, sub-fine grain, ultra-fine grain, newly launched double-grain. According to the main chemical composition, cemented carbide can be classified into three types including tungsten cobalt (YG), titanium-tung-ste (YT), and adding rare carbonization (YW).
The tungsten carbide has a high hardness of 86 ~ 93HRA, equivalent to 69 ~ 81HRC, second only to diamond, good heat hardness of up to 900 ~ 1000 ° C, keeping 60 HRC, the high bending strength of MPA5100, good impact toughness and high corrosion resistance. The general alloy blade does not have these characteristics.
The Production Process Of Tungsten Carbide Blades
1. Ingredient
The main component of the cemented carbide blade is a different ratio of tungsten carbide and cobalt and the initial form of the raw material is the powder. The container is filled with a prepared raw material, which will be used to produce different powders.
2. Proportion
In the workshop, the dried raw materials are mixed with ethanol and water to form a grey pulp.
3. Open mold
After the grey pulp is dried, the sample is sent to the laboratory for quality detection. These powders are consisted of many particles having a diameter of 20 to 200 μm.
4. Press
These powders are contained in a bucket with the capacity of 100 kg, to be delivered to a punching machine for manufacturing a blade. Operation workers place the stamping dies into the machine tool. The pressure used for stamping each blade is as high as 12 tons. The machine tool will weigh the blade, and the operator will also perform observation and control. At this period, the blade is very fragile.
5.Sintering
For hardened, the blade after stamping needs to be heated. This work is done by the sintering furnace. Thousands of blades can be processed at a time. The pressed blade powder is heated to about 1,500° C for 13 hours. The shrinkage ratio of the sintering process is about 50%.
6. Waiting for grinding
Complete the required thickness of the quality inspection in the laboratory. Because the tungsten carbide is very hard, it is necessary to adopt industrial diamonds for grinding.
7. Grinding
When the blade reaches the required thickness, it is further grinded to obtain geometric shapes and sizes. Tolerance requirements are extremely stringent.
8. Coating
After the grinding is finished, the blade will be cleaned and sent to the coating. At this period, in order to avoid any oil grease or dust, the gloves must be worn for dealing with the blade and then sent into a coating furnace with lower pressure for different colors.
Solventless adhesive adopts a solvent-free adhesive composite film to reduce energy consumption and comprehensive production costs, improving productivity and quality.
The solvent-free adhesive is a viscous material and two separate materials are connected together by means of its viscosity, a viscous liquid shape at normal temperatures, such as an epoxy resin. It is one of the most important auxiliary materials. Due to the solvent-free, it is beneficial to protecting the environment and cleaning products, is extremely widely applied in the flexible packaging industry.
Solvent-free adhesives are commonly used in solventless composite processes, which is of great significance for promoting and adopting solvent-free composite technology. It can solve the problems of different composite structural materials in a flexible packaging company. Frequent cleaning mixers and solventless machine can save time, improving production efficiency, and more importantly, saving the labor force of cleaning equipment, and further reducing the solvent quantity of cleaning equipment, more beneficial to reduce VOCs.
Analysis Of The Problems During Using Solventless Adhesive
1. Flying gel phenomenon
In solventless composite equipment, the gluing unit will find flocculation around the exhaust port, which is caused by fly ash when the solvent-free adhesive is used. The solventless adhesive has high viscosity. During high-speed production, the adhesive is sucked into the air and adheres to the surface of the device during exhaust. By increasing the exhaust volume, the adhesion of the fly ash on the device surface can be reduced, and the frequency of the cleaning vents can be increased to maintain the stable exhaust volume.
2.Influence on the friction coefficient of the slip agent
The use of a solventless adhesive can affect the friction coefficient of the inner layer containing the slip agent, the thinner the inner layer, the more obvious effect, the higher the curing temperature, the longer the time, the more significant effects of the curing process and the inner layer formulation. It is effective to properly reduce the amount of adhesive or choosing the adhesive which little effect on the slide agent.
3. Solubility
During solventless compounding, the adhesive sometimes dissolves the ink. It is necessary to verify the work before mass production, stabilization process and avoid free replacement of ink and solventless binders. Further, by adjusting the solventless composite process, the solvent-free complex is first cured for 2 hours at room temperature and then curing in the curing chamber to alleviate the problem of ink dissolution.
4. Adhesive cannot be completely cured or dried
The main agent and curing agent of two-component solvent-free adhesive are mixed in a certain proportion. If the mixing is uneven, an intermittent problem occurs. If the ratio is wrong, the glue does not dry. It is very sticky. In order to prevent unevenness mixing, in addition to controlling the instability of manual rubber, using the glue mixer, it is also necessary to regularly inspect the equipment status.
5. Bubble Failed Bubble problems are also commonly occurred in solventless compounding. The so-called bubble means that the two films are not fully adhered, and there is a gas between the composite film and the substrate. When composite the aluminum foil, a small white point is generated. As long as the two layers are not completely adhered and the transparency is different, there will be bubble phenomena.
Insufficient glue will increase the bubbles caused by uneven coating, which can be solved by applying an appropriate amount of glue. The bubbles caused by high ambient humidity, are CO2 which is formed by the NCO in the binder and the water in the air. The problem will be solved by appropriate control of the humidity in the composite environment and keep the relative humidity is 70% or less. If the curing is not suitable, the secondary flowing of the adhesive can also cause bubbles, which can be solved by appropriately increasing the curing temperature.
The application of a solventless adhesive has unique advantages of high efficiency, environmental friendly and low cost. It will gradually substitute dry composite applied in the solventless composite.
The solventless machine is widely used for flexible packaging industry with good performance, green environmentally friendly, low energy consumption, no residual solvent and high precise coating.
Now Sinstar has several series of solventless laminating machines, including the series of WRJSi9, WRJi9, WRJFi9, SIL90, WRJSLi5, C180, E280, S380. Compared with the single station solventless laminating machine, the double station type mainly has the following advantages.
WRJSi9
On June 8, 2021, Sinstar has launched a new product – three-layer solventless laminator and machine model is WRJSi9.
Three-layer composite machines, as the name implies is a solventless machine realizing one-time composite forming of three-layer materials. In recent years, there is a high-speed development for solventless composite, and the requirements for composite process and equipment functions are increasing. The solventless lamination equipment which can carry out the substrates compounding of multi-layer materials on a composite machine, is in urgent need.
Sinstar three-layer solventless machine has a reasonable structural layout, simple loading, saving time and effort, realizing one-time molding for three-layer composite, which is beneficial to improve production efficiency and product quality.
Advantages
1. Simple and convenient to load
2.Shorten the delivery term
3.Increase productivity
4. Greatly reduces the labor intensity of employees
The solventless machine adopts a method that can composite two or more substrates by using solvent-free adhesives. The solventless laminating machine has a wide application with the advantages of environmental, hygiene, and high efficiency, especially used for the packaging industry of the food and the drug.
Development Of Solventless Laminating Machine
In 1974, the German company adopts the single component solventless-free adhesive in industrial production, marking the formal promotion of solvent-free composite.
In the 1980s, there was rapid development in developed countries such as Europe and the United States.
At the end of the 1990s, Japan gradually began to play an important to no solvent composite and had a great development. In India, Russia, Brazil, the solventless composite has gradually become the leading composite process.
In 1985, China had introduced the production technology and equipment of the solvent-free polyurethane adhesive from Germany, thereby enters the era of solventless composite process.
Competitive Solventless Laminating Machine Manufacturer In China – Sinstar
Sinstar, which is the abbreviation of Sinstar Packaging Machinery Co., Ltd, was founded in 2005. It is a professional company which focused on the R & D, production, sales and service of a solventless laminating machine. It is located in the National High-tech Industrial Park, Rongchang District, Chongqing, with an annual production capacity of 200 sets. Since its establishment, the company has characterized simple-operate, safety, high durability and perfect service. Sinstar has become one of the most competitive solventless laminating machine manufacturers in China.
Solventless lamination machine supplied by Sinstar, has independent innovation patented technology, including “CCMS coated clearance memory system”; “FGPS foolproof glue preparation system”; “precision metering control system”; “coating weight directly inputting system”, “ratio pressure protection system” “quick cleaning system”, “zero error tension control system”, etc.
Sinstar has 135 authorized patents, including 7 authorized invention patents, 123 utility model patents, 5 appearance design patents. Sinstar is devoted to providing green and environmentally friendly solventless composite packaging machinery, technical guaranteeing the safety of food and drug packaging.
Sinstar is your trustworthy solventless laminating machine manufacturer and the solvent-free machine supplied by Sinstar has advanced systems, easy-to-operate, high safety, high efficiency and long service life.
In general, as a product used for marine lighting, it is necessary to specially purchase. Marine lights include a flushing light, a walkway light, an emergency light, a deck operation lighting, a searchlight for a remote search, an explosion-proof light, the mobile lighting used in temporary workplaces. In order to meet the requirements of different vessels, it is necessary to learn different categories of marine lighting and their characteristics.
Ceiling Lights
The common marine ceiling lights include a ceiling light with a square cover, a spherical ceiling light, a pointed round ceiling light, a semi-rounded ceiling lamp, a small ceiling lamp with a long square cover, etc. Marine lighting manufacturers provide wide-use boat ceiling lights, suitable for various ship rooms, emphasizing that as long as there is a ceiling, it is possible to install, with simple installation and styles.
Explosion-proof lighting
Explosion-proof lighting is designed to meet the illumination of dangerous sites with inflammable gas and dust. The LED lighting unit meets the harshest environmental specification of gas group hydrogen. It can prevent sparks and high temperature inside the lamp to ignite the combustible gas and dust in the surrounding environments. According to the difference of light source, it can be classified into explosion proof incandescent light, high-pressure mercury light, fluorescent light, LED light.
Searchlight
Marine search lights become more affordable and much more efficient with the recent vast improvements in LED technology to satisfy your boat lighting requirements. The searchlight is widely used for ship illumination and searching for night navigation, life-saving and warning.
Signal Lights
Marine signal lights allow other boats to determine the type and relative angle of a boat and thus decide if there is a danger of collision. The navigation light should fulfill the applicable rules for the cruise vessel with impact resistance and high energy efficiency. Easy installation and various mounting options ensure flexibility, time savings and increase the safety of crew members. The efficiency and life span of LEDs continues to improve, and LED luminaires are virtually maintenance-free.
Energy-saving lighting
The energy-saving lighting a wide-use marine light. It has superior brightness, longer service life than the general incandescent bulbs, especially outstanding in power-saving. There’re various types of energy-saving lamps with U-shaped, spiral, petal-type, etc, with power from 3 watts to 40 watts. The ship pendant lights and ceiling lights can generally install energy-saving lamps.
Wall Light
The common marine wall lights with double-headed magnolia wall lights, double head olive wall lights, double-head drum wall lights, double lace cup wall light, mirror front wall light, etc. Good boat light manufacturers will supply superb quality custom wall lights, the installation height of which can be adjusted as needed.
Marin lighting, which is necessary boat equipment, provides bright illumination for ship navigation and transmits different signal information. Marine lights should have high stability, good tolerance and high standard quality.
China manufacturers 