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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. | وحدة | 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 | ميجا باسكال | 68 | 78 | 55 | |
| 4 | Tensile strain at break | % | 35 | 35 | 10 | |
| 5 | Compressive stress(at 2%nominal strain) | ميجا باسكال | 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 | ميجا باسكال | 3100 | 3600 | 3200 | |
| 9 | Ball indentation hardness | N/mm 2 | 140 | 160 | 140 | |
| 10 | Rockwell hardness | – | M84 | M88 | M84 | |
| مادة: | POM |
|---|---|
| لون: | Black, White |
| Tooling: | CNC Lathe |
| مقاس: | According to Drawing or Sample |
| Transport Package: | Packing in Paper Carton and Wooden Pallet |
| Specification: | RoHS |
| أمثلة: |
US$ 2/Piece
قطعة واحدة (الحد الأدنى للطلب) | |
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| التخصيص: |
متاح
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هل يمكن استخدام ضواغط الهواء للتنظيف ونفخ الغبار؟
نعم، يمكن استخدام ضواغط الهواء بكفاءة لتنظيف ونفخ الغبار في تطبيقات متنوعة. إليك كيفية استخدام ضواغط الهواء لهذه الأغراض:
1. تنظيف الآلات والمعدات:
تُستخدم ضواغط الهواء على نطاق واسع لتنظيف الآلات والمعدات في قطاعات صناعية متنوعة، كالتصنيع والسيارات والبناء. يُوجّه الهواء المضغوط عبر فوهة أو ملحق نفخ لإزالة الغبار والحطام والملوثات الأخرى من الأسطح والشقوق والأماكن التي يصعب الوصول إليها. يعمل الهواء المضغوط بكفاءة عالية على إزالة الغبار المتراكم، مما يُسهم في الحفاظ على أداء المعدات ونظافتها.
2. تنظيف الأسطح من الغبار:
تُستخدم ضواغط الهواء أيضًا لتنظيف الأسطح من الغبار في أماكن مختلفة، بما في ذلك المنازل والمكاتب وورش العمل. يُمكن استخدام الهواء المضغوط لإزالة الغبار عن الأثاث والرفوف والمعدات الإلكترونية وغيرها من الأشياء. إنها طريقة سريعة وفعالة للتنظيف، خاصةً للأشياء المعقدة أو الحساسة التي قد يصعب تنظيفها بالطرق التقليدية.
3. تنظيف أنظمة التدفئة والتهوية وتكييف الهواء:
تُستخدم ضواغط الهواء لتنظيف أنظمة التدفئة والتهوية وتكييف الهواء. يُمكن استخدام الهواء المضغوط لإزالة الغبار والأوساخ والشوائب من قنوات التهوية وفتحات التبريد. يُساعد ذلك على تحسين كفاءة وجودة الهواء في أنظمة التدفئة والتهوية وتكييف الهواء، ويمنع تراكم الملوثات التي قد تؤثر على جودة الهواء الداخلي.
4. نفخ الغبار في ورش العمل:
في ورش العمل والمرائب، تُستخدم ضواغط الهواء عادةً لإزالة الغبار والحطام من طاولات العمل والأدوات الكهربائية ومناطق العمل. يُوجّه الهواء المضغوط لإزالة الجزيئات العالقة والحفاظ على بيئة عمل نظيفة وآمنة. يُعدّ هذا مفيدًا بشكل خاص في النجارة والحدادة وغيرها من المهن التي قد يتراكم فيها الغبار والحطام أثناء عمليات التصنيع أو التشكيل.
5. تنظيف الأجهزة الإلكترونية ومعدات الكمبيوتر:
تُستخدم ضواغط الهواء لتنظيف الأجهزة الإلكترونية ومعدات الحاسوب. يُستخدم الهواء المضغوط لإزالة الغبار والشوائب من لوحات المفاتيح، وهياكل الحاسوب، ولوحات الدوائر، والمكونات الإلكترونية الأخرى. ويساعد ذلك في منع ارتفاع درجة الحرارة والحفاظ على الأداء السليم للأجهزة الإلكترونية الحساسة.
6. تطبيقات التنظيف الصناعي:
تُستخدم ضواغط الهواء على نطاق واسع في تطبيقات التنظيف الصناعية. فهي تُستخدم في البيئات الصناعية، مثل المصانع والمستودعات، لتنظيف الأسطح الكبيرة وخطوط الإنتاج والمعدات. ويتم توجيه الهواء المضغوط عبر ملحقات تنظيف متخصصة أو أنظمة تنظيف تعمل بالهواء لإزالة الغبار والأوساخ والملوثات بكفاءة.
عند استخدام ضواغط الهواء للتنظيف وإزالة الغبار، من المهم اتباع احتياطات وإرشادات السلامة. قد يتسبب الهواء المضغوط بشدة في إصابات إذا وُجّه نحو الجسم أو المعدات الحساسة. يُنصح بارتداء معدات الوقاية الشخصية المناسبة، مثل نظارات وقفازات السلامة، والتأكد من ضبط ضغط الهواء لتجنب القوة المفرطة.
بشكل عام، توفر ضواغط الهواء حلاً متعدد الاستخدامات وفعالاً لتنظيف ونفخ الغبار في تطبيقات مختلفة، مما يوفر بديلاً مناسباً لأساليب التنظيف التقليدية.
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How do you troubleshoot common air compressor problems?
Troubleshooting common air compressor problems can help identify and resolve issues that may affect the performance and functionality of the compressor. Here are some steps to troubleshoot common air compressor problems:
1. No Power:
- Check the power source and ensure the compressor is properly plugged in.
- Inspect the circuit breaker or fuse box to ensure it hasn’t tripped or blown.
- Verify that the compressor’s power switch or control panel is turned on.
2. Low Air Pressure:
- Check the air pressure gauge on the compressor. If the pressure is below the desired level, the compressor might not be building up enough pressure.
- Inspect for air leaks in the system. Leaks can cause a drop in pressure. Listen for hissing sounds or use a soapy water solution to identify the location of leaks.
- Ensure the compressor’s intake filter is clean and not clogged, as this can restrict airflow and reduce pressure.
3. Excessive Noise or Vibration:
- Inspect the compressor’s mounting and foundation to ensure it is secure and stable. Loose mounts can cause excessive noise and vibration.
- Check for loose or damaged components, such as belts, pulleys, or motor mounts. Tighten or replace as necessary.
- Verify that the compressor’s cooling system, such as the fan or fins, is clean and free from obstructions. Overheating can lead to increased noise and vibration.
4. Air Leaks:
- Inspect all connections, valves, fittings, and hoses for leaks. Tighten or replace any loose or damaged components.
- Apply a soapy water solution to suspected areas and look for bubbles. Bubbles indicate air leaks.
- Consider using thread sealant or Teflon tape on threaded connections to ensure a proper seal.
5. Excessive Moisture in Compressed Air:
- Check the compressor’s drain valve and ensure it is functioning properly. Open the valve to release any accumulated moisture.
- Inspect and clean the compressor’s moisture separator or air dryer, if equipped.
- Consider installing additional filtration or drying equipment to remove moisture from the compressed air system.
6. Motor Overheating:
- Ensure the compressor’s cooling system is clean and unobstructed.
- Check the motor’s air intake vents and clean any dust or debris that may be blocking airflow.
- Verify that the compressor is not being operated in an excessively hot environment.
- Check the motor’s lubrication levels and ensure they are within the manufacturer’s recommended range.
- Consider using a thermal overload protector to prevent the motor from overheating.
If troubleshooting these common problems does not resolve the issue, it may be necessary to consult the manufacturer’s manual or seek assistance from a qualified technician. Regular maintenance, such as cleaning, lubrication, and inspection, can also help prevent common problems and ensure the optimal performance of the air compressor.
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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
