Description du produit
Engineering plastic Pom Sprocket wheel
POM(Polyformaldehyde) is a engineering plastics of non-side-chain, high density, high crystalline and linear polymer, which is praised “Plastic Steel”, and has comprehensive excellent performances, such as: Wear-resistance, high hardness, anti-impregnant, good rigidity (Tensile modulus of elasticity), chemical stability, isolation resistance and dimensional stability. POM has widely applied in Automobile industries, electronic and electric products, commodity, pipeline & fittings, exact apparatus and so on, which can be instead of the bronze, Zinc, tin and other metals.
Except POM-H is often copolymerized with ethylene oxide together, in order to avoid the melting of POM material in the high temperature. POM-H has the better performances than POM-C in its high crystalline, mechanical strength and rigidity. And POM-C has the better performances than POM-H in its low melting point, temperature stability, fluxion characteristic and machining capability.
Father more, POM-H+PTFE, which is made from the Delrin POM Resin that maxed Teflon fiber symmetrically, has the low co-efficient of frication, good lubrication, wear-resistance, non-creepage resistance.
Automobile industries: POM has a large application in car industries, because the mechanical parts made by POM, which has the advantages of high mechanical strength, high hardness, good wear-resistance, low co-efficient of friction, easy to maintain, reducing cost and so on, can be used in cars instead of coppery half stalk and planet gear. It not only saving copper materials, but also improving service life. At the engine fuel system, components for hose valves and case cover of radiator, cooling fluid’s standby case, water valve, oil box’ cover, pump impeller, shell of gasification machine and accelerator pedal and so on.
Electronic and electric Industries: Because of its lower power consuming, high dielectric strength and insulation resistance and electronic arc resistance, POM has widely applied in electronic and electric Industries, such as: Shell of electronic spanner, shell of electronic scissors, shell of coal drilling machine, handle of switch, parts also for phone, wireless recorder, video tape recorder, television, computer, electrograph, calculagraph, bracket of recorder tape and so on.
Agricultural machine: Part of manual sprayer, joint and transport part of seeder, parts of milk machine, shell of irrigation and drainage, valve, joint and bush of water and so on.
Other field:
Pharmacy & packing Machine: Transporting screw, planet gear, gear bar, chain wheel and cushion bar and so on.
Construction industries: Water tap, window frame, wash pot, water tank, pulley for portiere, shell of water meter and tie-in of water pipe.
| Property | Item No. | Unité | POM-C | POM-H | POM-H+PTFE | |
| Mechanical Properties | 1 | Density | g/cm3 | 1.41 | 1.43 | 1.50 |
| 2 | Water absorption(23ºCin air) | % | 0.20 | 0.20 | 0.17 | |
| 3 | Tensile strength | MPa | 68 | 78 | 55 | |
| 4 | Tensile strain at break | % | 35 | 35 | 10 | |
| 5 | Compressive stress(at 2%nominal strain) | MPa | 35 | 40 | 37 | |
| 6 | Charpy impact strength (unnotched) | KJ/m 2 | ≥150 | ≥200 | ≥30 | |
| 7 | Charpy impact strength (notched) | KJ/m 2 | 7 | 10 | 3 | |
| 8 | Tensile modulus of elasticity | MPa | 3100 | 3600 | 3200 | |
| 9 | Ball indentation hardness | N/mm 2 | 140 | 160 | 140 | |
| 10 | Rockwell hardness | – | M84 | M88 | M84 | |
| Matériel: | POM |
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| Couleur: | Black, White |
| Tooling: | CNC Lathe |
| Size: | According to Drawing or Sample |
| Transport Package: | Packing in Paper Carton and Wooden Pallet |
| Specification: | RoHS |
| Exemples : |
US$ 2/Piece
1 pièce (commande minimale) | |
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| Personnalisation : |
Disponible
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Can air compressors be used for cleaning and blowing dust?
Yes, air compressors can be effectively used for cleaning and blowing dust in various applications. Here’s how air compressors are utilized for these purposes:
1. Cleaning Machinery and Equipment:
Air compressors are commonly used for cleaning machinery and equipment in industries such as manufacturing, automotive, and construction. Compressed air is directed through a nozzle or blowgun attachment to blow away dust, debris, and other contaminants from surfaces, crevices, and hard-to-reach areas. The high-pressure air effectively dislodges and removes accumulated dust, helping to maintain equipment performance and cleanliness.
2. Dusting Surfaces:
Air compressors are also employed for dusting surfaces in various settings, including homes, offices, and workshops. The compressed air can be used to blow dust off furniture, shelves, electronic equipment, and other objects. It provides a quick and efficient method of dusting, especially for intricate or delicate items where traditional dusting methods may be challenging.
3. Cleaning HVAC Systems:
Air compressors are utilized for cleaning HVAC (Heating, Ventilation, and Air Conditioning) systems. The compressed air can be used to blow dust, dirt, and debris from air ducts, vents, and cooling coils. This helps improve the efficiency and air quality of HVAC systems, preventing the buildup of contaminants that can affect indoor air quality.
4. Blowing Dust in Workshops:
In workshops and garages, air compressors are often used to blow dust and debris from workbenches, power tools, and work areas. Compressed air is directed to blow away loose particles and maintain a clean and safe work environment. This is particularly useful in woodworking, metalworking, and other trades where dust and debris can accumulate during the manufacturing or fabrication processes.
5. Cleaning Electronics and Computer Equipment:
Air compressors are employed for cleaning electronics and computer equipment. The compressed air is used to blow dust and debris from keyboards, computer cases, circuit boards, and other electronic components. It helps in preventing overheating and maintaining the proper functioning of sensitive electronic devices.
6. Industrial Cleaning Applications:
Air compressors find extensive use in industrial cleaning applications. They are employed in industrial settings, such as factories and warehouses, for cleaning large surfaces, production lines, and equipment. Compressed air is directed through specialized cleaning attachments or air-operated cleaning systems to remove dust, dirt, and contaminants efficiently.
When using air compressors for cleaning and blowing dust, it is important to follow safety precautions and guidelines. The high-pressure air can cause injury if directed towards the body or sensitive equipment. It is advisable to wear appropriate personal protective equipment, such as safety glasses and gloves, and ensure that the air pressure is regulated to prevent excessive force.
Overall, air compressors provide a versatile and effective solution for cleaning and blowing dust in various applications, offering a convenient alternative to traditional cleaning methods.
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Comment diagnostiquer les problèmes courants des compresseurs d'air ?
Le dépannage des problèmes courants des compresseurs d'air permet d'identifier et de résoudre les problèmes susceptibles d'affecter leurs performances et leur fonctionnement. Voici quelques étapes pour dépanner les problèmes courants des compresseurs d'air :
1. Pas d'alimentation :
- Vérifiez la source d'alimentation et assurez-vous que le compresseur est correctement branché.
- Vérifiez le disjoncteur ou le tableau électrique pour vous assurer qu'il n'a pas sauté ou grillé.
- Vérifiez que l'interrupteur d'alimentation ou le panneau de commande du compresseur est allumé.
2. Pression atmosphérique basse :
- Vérifiez le manomètre du compresseur. Si la pression est inférieure au niveau souhaité, le compresseur risque de ne pas atteindre une pression suffisante.
- Vérifiez l'étanchéité du système. Les fuites peuvent entraîner une chute de pression. Écoutez attentivement pour détecter un éventuel sifflement ou utilisez une solution d'eau savonneuse pour localiser les fuites.
- Assurez-vous que le filtre d'admission du compresseur est propre et non obstrué, car cela peut restreindre le débit d'air et réduire la pression.
3. Bruit ou vibrations excessifs :
- Vérifiez la fixation et le socle du compresseur pour vous assurer de leur solidité et de leur stabilité. Des fixations mal fixées peuvent engendrer des bruits et des vibrations excessifs.
- Vérifiez que les composants, tels que les courroies, les poulies ou les supports moteur, ne sont ni desserrés ni endommagés. Resserrer ou remplacer les pièces défectueuses.
- Vérifiez que le système de refroidissement du compresseur, notamment le ventilateur et les ailettes, est propre et dégagé. Une surchauffe peut entraîner une augmentation du bruit et des vibrations.
4. Fuites d'air :
- Vérifiez l'étanchéité de tous les raccords, vannes, tuyaux et flexibles. Resserrer ou remplacer toute pièce desserrée ou endommagée.
- Appliquez une solution d'eau savonneuse sur les zones suspectes et recherchez des bulles. Les bulles indiquent des fuites d'air.
- Envisagez d'utiliser un produit d'étanchéité pour filetage ou du ruban Téflon sur les raccords filetés afin d'assurer une étanchéité optimale.
5. Humidité excessive dans l'air comprimé :
- Vérifiez le bon fonctionnement de la vanne de purge du compresseur. Ouvrez-la pour évacuer l'humidité accumulée.
- Inspectez et nettoyez le séparateur d'humidité ou le sécheur d'air du compresseur, le cas échéant.
- Envisagez l'installation d'équipements de filtration ou de séchage supplémentaires pour éliminer l'humidité du système d'air comprimé.
6. Surchauffe du moteur :
- Assurez-vous que le système de refroidissement du compresseur est propre et dégagé.
- Vérifiez les orifices d'entrée d'air du moteur et nettoyez toute poussière ou débris pouvant obstruer le flux d'air.
- Vérifiez que le compresseur ne fonctionne pas dans un environnement excessivement chaud.
- Vérifiez le niveau de lubrification du moteur et assurez-vous qu'il se situe dans la plage recommandée par le fabricant.
- Envisagez l'utilisation d'un protecteur thermique contre les surcharges pour éviter la surchauffe du moteur.
Si le dépannage de ces problèmes courants ne résout pas le problème, il peut être nécessaire de consulter le manuel du fabricant ou de faire appel à un technicien qualifié. Un entretien régulier, comprenant le nettoyage, la lubrification et l'inspection, permet également de prévenir les problèmes courants et d'assurer le fonctionnement optimal du compresseur d'air.
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How is air pressure measured in air compressors?
Air pressure in air compressors is typically measured using one of two common units: pounds per square inch (PSI) or bar. Here’s a brief explanation of how air pressure is measured in air compressors:
1. Pounds per Square Inch (PSI): PSI is the most widely used unit of pressure measurement in air compressors, especially in North America. It represents the force exerted by one pound of force over an area of one square inch. Air pressure gauges on air compressors often display pressure readings in PSI, allowing users to monitor and adjust the pressure accordingly.
2. Bar: Bar is another unit of pressure commonly used in air compressors, particularly in Europe and many other parts of the world. It is a metric unit of pressure equal to 100,000 pascals (Pa). Air compressors may have pressure gauges that display readings in bar, providing an alternative measurement option for users in those regions.
To measure air pressure in an air compressor, a pressure gauge is typically installed on the compressor’s outlet or receiver tank. The gauge is designed to measure the force exerted by the compressed air and display the reading in the specified unit, such as PSI or bar.
It’s important to note that the air pressure indicated on the gauge represents the pressure at a specific point in the air compressor system, typically at the outlet or tank. The actual pressure experienced at the point of use may vary due to factors such as pressure drop in the air lines or restrictions caused by fittings and tools.
When using an air compressor, it is essential to set the pressure to the appropriate level required for the specific application. Different tools and equipment have different pressure requirements, and exceeding the recommended pressure can lead to damage or unsafe operation. Most air compressors allow users to adjust the pressure output using a pressure regulator or similar control mechanism.
Regular monitoring of the air pressure in an air compressor is crucial to ensure optimal performance, efficiency, and safe operation. By understanding the units of measurement and using pressure gauges appropriately, users can maintain the desired air pressure levels in their air compressor systems.
editor by CX 2023-09-27
