Application of glue sealing technology in air compressor seal

Academic experience, the application of glue sealing technology in the air compressor seal Zhang Chenwen machine leakage in the machine equipment has always been a difficult problem for enterprises. This paper combines the gas supply system of Shantou Ocean First Polystyrene Resin Co., Ltd. with glue sealing technology. The practical experience of leaking and leaking, expounds the importance of leak-proof and leak-proof. The construction process of liquid sealant and the economic benefit of glue-sealing technology.

Key words glue sealing technology air compressor leakage prevention and leakage glue bonding construction technology In China, the leakage and leakage of machinery and equipment of general enterprises are almost everywhere, especially the chemical companies' leakage and leakage is a common phenomenon.

The phenomenon of running a drip can be attributed to one point, that is, leakage everywhere.

Due to the lack of tight sealing, water-immersed or dust-impregnated equipment in the environment can contaminate the working medium, affect product quality or aggravate parts wear and shorten the life of the machine.

The long-term leakage of equipment directly affects the economic benefits of enterprises, increases the consumption of enterprises, and also causes environmental pollution and even causes catastrophic accidents.

Therefore, leakage and leakage have become important issues that mechanical design, manufacturing and maintenance personnel must solve. It is very important to prevent leaks and leaks.

The main methods include plugging or blocking or diverting flow equalizing flow resistance or back pressure intercepting and throwing.

After many years of practice, Shantou Ocean First Polystyrene Resin Co., Ltd. has studied the glue sealing technology, and the growth period and biological characteristics of the various tested varieties are all resistant to leaf rust and seedling color.涝 涝 涝 涝 育 小 小 小 小 小 湛 湛 湛 强 强 强 强 强 强 强 强 强 强 强 强 强 强 强 强 强 强 强 强 强 强 湛 湛 湛 湛 湛 湛 湛 湛 湛 湛 湛 湛 湛 湛Medium eucalyptus oil strong green medium strong pearl red number medium green large medium sorghum oil strong green medium strong Guangdong oil medium green strong table various test varieties main economic characteristics Zhan oil 汕 oil Yue oil Zhan oil Yue oil 汕Oil Pearl Red No. oyster sauce Yueyou Baiguo heavy Tubu main points total receipts full double and half a hundred stems and branches are divided into green plants, nuts, nuts, high-long branches, time-seed rate, fruit weight, several branches The number of pods, the number of stems, the number of stems, the number of oils, the oil, the oil, the oil, the oil, the oil, the oil, the oil, the oil, the pearl, the red oil, the oil, the oil, the oil, the chemical science, the military experience, and the use of sealant to prevent leakage and have a good effect.

A gluing bond forming technique is a non-leakage joining technique between two mechanical components or components of a process system by an adhesive or sealant.

During the bonding process, an adhesive bond is formed between the adhesive and the surface of the adherend, and the adherend is bonded to form a stable whole under the action of the adhesive force.

In general, adhesion is the force that sticks to an object.

The amount of adhesion is determined by the amount of cohesion and adhesion.

Cohesion is the force between the molecules of the adhesive itself, ie the strength of the adhesive.

Adhesion is the force between the adhesive and the adherend, that is, the force of the adhesive attached to the surface of the object, including the intermolecular force and chemical bond force of the mechanical fitting force.

The mechanical fitting force is the mechanical fixation of the adhesive on the surface of the adherend and the mechanical fixation of the capillary. The intermolecular force is the mutual attraction between the adhesive and the adherend molecules. The chemical bond force is the chemical bond force formed between the adhesive and the surface of the adherend.

Second, the construction process of liquid sealant The construction process of liquid sealant is relatively simple, and if not used properly, it can not achieve the expected effect.

Therefore, mastering the correct construction process is an important part of the application.

The construction process of the liquid sealant is divided into five steps: pre-treatment, one-coating, one drying, one connection, one fastening, and one cleaning.

The pretreatment bonding surface must be pretreated before it is applied.

Remove oily rust and dust from the joint surface.

The rust on the metal surface can be removed by a sandpaper wire brush or other rust remover.

Generally, the oil can be washed with acetone, but if there is a lot of oil stain on the joint surface, it is best to wash it with gasoline kerosene first, then wash it with acetone and dry it.

No special surface treatment is required for any bonding surface.

If the joint is originally coated with a sealant, the old layer must be removed.

Glue can be applied directly to the bonding surface of the liquid sealant or by a spatula brush.

When applying glue, the glue should be continuous and not lack of glue.

The coating thickness depends on the processing accuracy of the bonding surface and the gap size.

For general purpose liquid sealants.

It is advisable to use both sides for the silicone sealant, on both sides. .

For better, the amount of glue applied during the sealing gap is thinner, and the amount of glue applied is thicker when large, avoiding the waste of multiple glue.

The imported silicone sealing gap can be used for large gaps and can be used with solid gaskets.

The dry solvent-type liquid sealant needs to be dried, otherwise the solvent is gradually volatilized between the bonding surfaces to shrink the rubber layer and generate bubbles, thereby reducing the sealing performance.

Drying time, for the adhesion type and the dry peeling type, generally for a non-dry type and semi-dry viscoelastic type, the joint can be fastened and the silicone glue has no drying time because it has no solvent.

The fastening method for connecting and fastening the liquid sealant is the same as when using the solid gasket. When tightening, it is required to apply uniform force everywhere, and the sealing surface cannot be displaced.

The post-treatment solvent-type sealant can be used after the solvent is fully volatilized in the bonding surface, and the silicone rubber anaerobic type must wait for the adhesive layer to fully harden and cure before it can be used or tested. The time required is a solvent-free sealant. Once the connection is tightened, it can be used directly or commissioned.

In addition, clean excess and flowing glue.

The application of three-glued sealing technology in the sealing of screw air compressor is the important equipment of the gas supply system of Shantou Ocean First Polystyrene Resin Co., Ltd. The system medium is mainly the special lubricating oil for air and air compressor. Pressure To ensure the stability of the gas supply and ensure the benign operation of the equipment, the air compressor must be inspected and maintained regularly, and the sealing of the inspection system is an important part of the maintenance.

In the process of repairing the air compressor, sometimes encountering the phenomenon of running a drip, it is necessary to take effective measures to prevent leakage.

Through the practice of leak prevention and leakage prevention for several years, it is possible to achieve better results by sealing with Nanda glue.

Nanda Gum is a silicone sealant that is a room temperature cured silicone rubber adhesive.

After the application of the glue, the elastomer is formed by comprehensively vulcanizing by absorbing a trace amount of moisture in the air.

The formed film has soft viscoelasticity, can withstand large vibrations and impacts, and can well meet the sealing requirements of mechanical and electronic products and their equipment when working in harsh environments.

Sealing of the conical pipe joint of the screw air compressor Last year, Shantou Ocean First Polystyrene Resin Co., Ltd. repaired and repaired the screw air compressor. During the test machine after the overhaul, the main engine of the oil and gas separator was found. The tapered pipe joint leaks oil.

So Nanda 70 glue was used to seal the place. The specific operation is as follows: remove the joint, clean the oil, dry it and apply a layer of Nanda on the sealing seat. Apply it to the external thread for a week. Install it carefully and tighten it as usual.

Shantou Science and Technology Academic Experience A computer management system for engine A. Zhang Hongbin In recent years, due to the stricter regulations on restricting automobile pollution, and the rapid development of computer technology and related devices, people naturally think of using electronic technology for improvement. The quality of vehicle exhaust emissions.

Thus, since the 1970s, automotive electronics technology has developed rapidly, from the initial simple electronic ignition to the computer network system that now fully manages automobiles.

The technology of using the computer to fully control the engine is showing its strong vitality.

Why use a computer to manage an earlier engine, especially a carburetor-type gasoline engine, is often stretched when dealing with its emissions fuel economy and driveability.

In the age of the era, the threat of the energy crisis has made the carburetor-type gasoline engine technology have reached a point where it cannot be completely improved.

Fortunately, the electronics industry has made great strides in digital microprocessors.

This small computer proves that it can meet the needs of the automotive industry because of its low cost and high speed.

The most outstanding performance of digital computers is speed.

Now let's analyze the various functions of a six-cylinder engine with a single computer.

It sends an ignition timing command to the cylinder to ignite and calculate the input information about the engine operation. The information includes the cooling water temperature, the engine load, the atmospheric pressure, the throttle position, the air-fuel ratio, the ignition knock, the vehicle speed, etc., and makes a new decision regarding the air-fuel ratio ignition timing. Whether to open the valve and torque converter clutch.

All of this work is done before the ignition of the next cylinder.

The computer is much faster than the fastest engine, and it has nothing to do most of the time, just counting its internal clock.

Therefore, computer technology can be used for accurate monitoring and automatic adjustment. When operating, the engine can be fully calibrated so that the vehicle can meet the government's requirements for emissions and fuel economy, and meet the consumer's requirements for excellent drive performance.

Nowadays, almost all cars in advanced countries such as Europe, America and Japan use computerized engine management systems.

After the sealing of Nanda Glue, the screw air compressor was continuously operated for more than one year, and the conical pipe joint was not found to have oil leakage.

In the air compressor separator of the air compressor separator, the oil separator of the air compressor of the leak-proof screw is sometimes blocked or leaked during operation, so it must be replaced.

In the process of replacement, in order to prevent the joint surface from leaking, the Nanda 70 glue is used to seal the joint surface.

The specific operation is as follows to remove residual liner and oil stain with cleaning agent, if necessary, it can be mechanically removed, but do not polish and remove the bonding surface with acetone or other cleaning agent. Apply a large glue on one side to form a continuous closed glue line. Partly enclosed, the screw hole also needs to be surrounded around 4) Align and close, tighten the screw, taking care to avoid misalignment.

It is not necessary to assemble immediately after applying the glue, but the longest time should not exceed 45 minutes. It must be carried out in strict accordance with the regulations and requires a certain curing time.

4. Conclusion Shantou Ocean First Polystyrene Resin Co., Ltd. in the process of controlling the leakage of equipment such as air compressors in factories, after years of practice, the glue sealing technology is a brand new seal that is not in the traditional mechanical engineering method. The technology has obvious effects on solving the looseness of the thread leakage and the leakage of the hydraulic and pneumatic system. It is convenient to use for destructive leakage and non-stop pressure plugging.

It can reduce the scrap rate of spare parts, reduce fuel consumption, reduce waste of resources, realize the repair and disposal of old waste, greatly shorten the time of maintenance and repair, achieve low cost and high efficiency of equipment maintenance, ensure product qualification, and avoid economic loss caused by production stoppage.

References Practical Adhesive Leak-proof Leakage Technology Ma Zhisheng, Beijing, Mechanical Industry Press, Equipment Leakage Prevention Zhao Guangyao, Metallurgical Industry Press Zhang Jianmin, Application of Pressure Plugging Technology, China Equipment Management, Author Unit Shantou Ocean First Polyphenyl Resin Co., Ltd. Shantou Technology

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