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Ningbo parfect forging Co.,LTD . 
Rm1208,Taikang zhong road,499#,Yinzhou District,Ningbo,315199,China.
P.C:315100
Tel:+86-574-28862606 
Fax:+86-574-28862660 
International Sales Manager :Tom Lei

E-mail:parfectsales@cnool.net 
         sales@nbpft.com  
         tomleimin@163.com

Welcome to Products Center
产品说明
We are a China motor timing belt pulley casting company, sand casting company, producing all kinds of motor timing belt pulley parts, ductile/grey iron motor timing belt pulley and carbon steel motor timing belt pulley, alloy steel motor timing belt pulley, lost wax casting process motor timing belt pulley, normal sand casting process motor timing belt pulley,Resin sand casting process Railway Wheel, Open die Forging (forged/forge) process motor timing belt pulley. We are the leading China motor timing belt pulley inc. Our motor timing belt pulley casting parts is in good quality. Our China motor timing belt pulley co.,ltd use casting process to produce motor timing belt pulley parts,The materials of motor timing belt pulley parts will be designed by our engineer in China, as a China motor timing belt pulley Supplier, we can produce motor timing belt pulley according to your requirements. China motor timing belt pulley corporation have different sizes of motor timing belt pulley parts,You can see some of motor timing belt pulley parts, motor timing belt pulley. We did in our China motor timing belt pulley co.,ltd website! Our China motor timing belt pulley company has emerged as one of the top innovators among China motor timing belt pulley manufacturers. Our motor timing belt pulley are exported to Canada, Australia, UK and America! Our motor timing belt pulley are wear-resisting,not fracture,greatly reducing replacement and improve working efficiency. We have strict quality by the user consistent high praise. If you need motor timing belt pulley, please feel to contact us. Nord motor timing belt pulley corporation will provide you best price with high good quality! Nord motor timing belt pulley company in China,starting since 2001, is a Chinese motor timing belt pulley company, specialized in manufacturing all kinds of carbon steel , alloy steel, stainless steel,ductile iron,grey iron,gray iron,High manganese steel,High chromium iron...casting parts, which are used in the field of transportation equipment(train parts/vessel parts), mining machinery, rubber machinery, some other heavy machineries,etc. The reasons to choose us:1.Good Service.OEM and ODM service offered.1 year limited warranty for defective items(excluding items damaged and/or misused after receipt),2.Specialized motor timing belt pulley Enterprise in China.Simulation of the casting system,Proficient in 3d design software,solidworks,Pro.CAD with rich experienced technical teams,Provide Complete Casting Solutions3.Quality Assurance.Well-equipped testing facilities,Good quality control system,4.Competitive Prices, First Choice.Save Cost Creating Values for You.
Process Description
Investment Casting

There are three techniques in our investment casting process including water glass technique casting, silica sol technique casting and lost foam casting. 
Water glass technique casting 
Water glass technique casting is also called cryogenic lost wax. And the dimension tolerance we could reach is CT7-8.The main material is carbon steel, alloy steel. The weight controlled is about 0.2-80 kg. 
Silica sol technique casting 
Silica sol technique casting is also called mesothermal lost wax. And the dimension tolerance we could reach is CT5-6.The main material is stainless steel ,carbon steel, alloy steel. The weight controlled is about 0.1-60kg.

Lost foam casting 
Lost foam casting is a modern form of investment casting that eliminates certain steps in the process. And the dimension tolerance we could reach is CT8-9.The main material is gray iron, dutile iron, high Cr cast iron, resistance cast iron. The weight controlled is about 0.2-100 kg.
Sand casting

For sand casting, we are good at steel sand castings, the weight controled is 40-2500kg.

 

Investment casting process

   

  

1. Mould Designing

Strictly making 3D model based on customer's drawing dimensions, and mastered the contractibility rate for all types of material.

2. Wax Injection
Wax design of the desired castings are produced by injection molding. These designs are called patterns.

  

   
3. Assembly
The patterns are attached to a central wax stick, called a sprue, to form a casting cluster or assembly.
4. Shell Building 
The shell is built by immersing the assembly in a liquid ceramic slurry and then into
a bed of extremely fine sand. Up to eight layers may be applied in this manner.

  

  
5. Dewax 
At this point, all of the residual pattern and gating material is removed, and the ceramic mold remains. The mold is then preheated to a specific temperature and filled with molten metal, creating the metal casting
6. Mould Shell Roast:
 This process is to put the lost-wax shell into the roast furnace and make them harder. Heating the Mould shell before casting is also to ensure the better products surface texture.
     
7. Smelting the Liquid Steel:
 Allocate the chemical composition and sampling before steel casting.
8.Spectrochemistry Analysis
Inspection on materials by spectrometer testing.
     
9. onventional  Casting
In the conventional process, the shell is filled with molten metal by gravity pouring.
10. Cut Off 
The parts are cut away from the central sprue using a high speed friction saw.
    
11.Heat Treating
Carbon steel and low-alloy steel need normalizing and temper, oil-quenching, water-quenching and so on. We can set out different heat treatment method as per different requirement from customers.
12. Polishing
Polishing is to modify the out of flatness on casting head after casting  cuttig and to modify the burring and splashings in the process of casting cycle.
 
      
13. Inspection:
Inspection of the mechanical properties, surface, internal quality, and to check if the rough dimension meet the drawing requirement for the prodcuts.
14. Machining
Cut the piece of raw material into a desired final shape and size. Now we have CNC, Lathe, milling machine, drilling machine, boring lathe and grinding machine.
   
15.Quality Inspection:
Quality inspection on the machining dimension. Mainly tools we use is like specialized gauge and callipers, mircocalliper,three-dimensional and  so on. 
16. Storage and Delivery
 Efficiency of package goods delivery on time per your shipping requests.
 Advantage of investment casting
Wide Application Scope 
Our investment casting process is virtually unrestricted by the size ,thickness and shape complexity.
Wide Choice of Alloys 
Our investment casting process able to utilize a wide variety of alloys for common carbon steel, alloy steel, manganese steel,stainless steel ,and high-Cr & wear-resist Iron and so on.  
Dimensional accuracy
The investment casting process is capable of producing foundry with higher accuracy than ordinary forgings and weld assembly in general condition.
Reduction of Production Costs
Investment castings are able to reduce costs in many cases such as reduced machining, less materiel waste and so on.
In addition, we own CNC machining center and CNC Lathe, so machine parts (machining parts or machinery parts),metalwork (metal products) are ok for us!