The bushing is one of the main parts of the gear pump, and is mounted on the two ends of the high-speed gear to support the bearing. It must have sufficient strength and good wear resistance. In order to ensure the performance requirements of the parts, our factory uses non-standard aluminum-tin alloy, and the role of Cu is to strengthen the matrix. Sn can form a softer low melting point Al-Sn eutectic, which increases wear resistance. The original heat treatment process is 515 ° C solid solution 6h water cooling, 180 ° C aging 8h air cooling. There are two problems with this process:
(1) The Al-Sn eutectic was over-fired to form tin to form an Al-Sn eutectic containing 99.5% of tin, and its melting point was 229 °C. When the workpiece is heated to 515 ° C, the Al-Sn eutectic is over-fired and a remelted pellet is formed upon quenching and cooling. In the process of forming the remelted pellets, on the one hand, the grain boundary is oxidized, the grain strength is decreased, and on the other hand, many microvoids are generated, the grain boundary energy is increased, the strength of the metal is lowered, and it is easy to use during use. Early failure.
(2) The production time of the process is long, up to 16 hours, the production efficiency is low, and the energy consumption is large.
It can be seen from the metallographic observation and mechanical property test data that the treatment process at 250 ° C × 7 h is ideal. The Al-Sn eutectic crystal is distributed along the grain boundary in a broken network. On the one hand, the Al-Sn eutectic distribution is relatively uniform, ensuring good wear resistance. On the other hand, the Al-Sn eutectic does not have a split matrix, which makes the alloy better. Plasticity and toughness. The use of 250 ° C × 7h treatment process can obtain higher hardness, because the alloy contains less Cu, the metal mold cooling rate is fast, in the casting cooling process, Cu has been ensured to melt into the solid solution, played a quenching effect. This is also evidenced by the increased hardness through natural aging. The tensile strength of the 250 ° C × 7 h air-cooling process is 47% higher than that of the 515 ° C × 6 h water cooling + 180 ° C × 8 h air cooling process. The 250 ° C × 7 h air cooling process temperature is slightly higher than the melting point of the Al-Sn eutectic crystal, in order to obtain the mesh-like distribution of the Al-Sn eutectic crystal by a short holding time without pre-sintering the eutectic. On the basis of the process test, a small batch (400 pieces) of trial production was carried out, and all the products were tested by hardness, metallographic examination and test bench. The process was officially put into production in 1996, and has produced hundreds of thousands of bushings, all of which are qualified. The work efficiency is increased by 1.3 times, and the annual savings can be about 70,000 yuan, and the power saving is over 80,000 kW.h.
Why choose us?
1) We offer a great variety of goods with all kinds of quality that can meet the requirement of most markets in the world.
2) For all your inquires about us or our products, we will reply you in detail within 24hours.
3) Quality inspection in random before shipping assures products reliability with technical data.
4) Professional sales team,engineer team,and good after-sales service.
5) Any defective products within warranty will get maintenance or replacement unconditionally.
6) Protection of your sales area,ideas of design and all your private information.
7) OEM & ODM are welcomed, OEM brand is available.
Philizon enjoys a high reputation in grow led lamp and Aquarium Led Light fields throughout Europe and America, Philizon also insists on taking high technology to design the newest&best led Grow Light and Led Reef Lighting constantly as the market request. Our R&D team with more than 10 people has rich experience in appearance design, electronic structure,heat dissipation simulation analysis, optical lens design, lightcontrol system etc. Most of our hydroponics full spectrum led grow lighting and Led Reef Lighting are private modules,we have 10 more design patent and utility model patent till now.
Our Led Reef Lighting is popular in led market, cause its elegant outlook and its high quality and competitive price.
Key Features
1.The lifespan is over 50000 hours,low maintenance costs.
2.Energy conservation,saving over 80% energy than the traditional HPS.
3.High light efficiency,90% of the light will be absorbed by the aquatic plants,while just 8%-10% to the HPS.
4.Build-in cooling system,could solve the heat dissipation excellently.
5.Built-in power supply, CE approved, No setup required, just simpler and safer plugs directly into AC85V-264V, no reflector & ballast needed.
Item Display
Convenient in using lights at the same time.
Package Include
1 X Free Hanging Kit
1X Free Power Cord
Quality Control systems and after-sales
All the lamps have passed strict quality examination and are packed carefully before shipping. In order that our customers get high quality lamps, we attach importance to every details.
Application
1. coral reef lighting,fish tank lighting,coral reef tank lighting
2. aquarium lighting,aquarium art,aquarium shop,aquarim centre
3. fish bowl lighting,fish lighting,freshwater lighting,saltwater lighting
Philizon Advantages
Professional: we are professional LED Grow Lights and LED Aquarium Light manufactuer here in China,you will get Professional and High quality LED Grow Lights and Led Reef Lighting from us and get good guarantee.
Cost-effective Price:we don`t have the lowest price,but the Led Reef Lighting you get from us really cost-effective,good quality & decent price.
Win-win situation:Long term business is our mission,we will provide good Led Reef Lighting and warming service to build a long-term business relationship with you
24/7 unlimted customer service: we are always here for you for your question,any question just email us or call us,we do our best to help you all the way.
Long term warranty: Don`t worry about the quality and we guarantee you 3years warranty for all the LED Plant Grow Light and coral reef led aquarium light.
Best buying experience: you will get the tiptop serive you have ever had,just have a try and you`ll see.
Trade Terms
Payment: T/T, L/C, Paypal, 30% deposits before production, 70% balance to be paid before deliverying(Western Union are welcome)
Sample will be delivered within 7 working days.
Discounts are offered based on order quanlityes.
MOQ:sample order are acceptable
Delivery ways:DHL,UPS,FedEx,TNT, door to door,by sea,by air,etc.
Our products ranges:
LED plant grow lights for agricultural lighting;
LED aquarium lights for fish tanks,corals,saltwater tank,marine tank with reef,coral,sps,lps,fish,etc;
Warmly welcome to take a visit on our factory at any time and we will pick you up at the airport in Shenzhen.
Intelligent Aquarium Light,Top Quality Led Aquarium Light,Led Aquarium Light Coral Reef,Coral Reef Led Aquarium Lighting
Shenzhen Phlizon Technology Co.,Ltd. , https://www.philizon.com