|Place of Origin:||Qingdao, China|
|Certification:||ISO 9001, SGS|
|Minimum Order Quantity:||100pcs|
|Packaging Details:||Bag + Box + Carton + Pallet|
|Delivery Time:||30-45days according to quantity|
|Payment Terms:||L/C, T/T, Western Union, D/A, D/P|
|Supply Ability:||10000pcs per month|
|Machining Tolerance:||±/-0.10mm||Casting Type:||Precision Casting|
ODM Casting Machine Parts,
DIN CNC Machining Parts,
Nickel Plating CNC Machining Parts
Custom Stainless Steel Casting Machinery Parts
Why choose the casting of compass hardware?
The lost wax method is very suitable for producing precision castings with complex shapes and high dimensional accuracy & quality. In addition, it offers a large freedom in both design and material choice of your desired castings. Precision castings are known as the highest quality castings available on the market.
|Process||precision Casting, other process can be customized.|
|Material||Alloy steels, Carbon Steel , Stainless steel, Malleable iron , Grey iron, Ductile iron Aluminum, Bronze etc.|
|Finish||Plain,Nickel Plating , Chrome Plating or Polishing|
|Application||Automotive ,Mining, Railway, Construction equipment,Mining etc|
|Quality Control||CMM, Projection Machine, spectrometer, Hardness tester, Tensile tester etc.|
Precision casting steps
Phase 1: Mold Engineering and Production
Precision investment casting begins with the engineering and production of casting molds, also known as wax tools. This mold is made by Compass Hardware engineers as the “negative” of the final casting. Using a casting mold, the wax model can be sprayed with very precise dimensions and excellent contour sharpness. These wax models are glued together, glued to a so-called wax “tree”, and the casting funnel is installed. In the later stages of the process, the steel is poured into the hopper. Depending on the size of the series, the sand mold is installed on a manual or automatic press.
Phase 2: Ceramics
After the wax models are glued together, the tree is given a fireproof ceramic shell. This shell is constructed by repeatedly submerging the tree (up to 7 or 9 times) in a slurry and sprinkle it with ceramic sand. The ceramic layers are then hardened in a drying chamber, exposed to air.
After the layers have been formed and dried, the wax is melted out of the ceramic tree by using steam (120°C) in an autoclave. This is why it is called'lost wax casting'. The molten wax can be regenerated and is reusable. The ceramic tree is then baked at a high temperature (1100°C) and reaches its final strength through the sintering process. Wax leftovers are burned up during this process.
Phase 3: Casting process
The desired steel alloy is melted in a large furnace and brought to casting temperature. The ceramic tree is, at the same time, heated in a oven to prevent thermal shocks during the casting process. After the tree has been heated, it is removed from the oven by a robotic arm and the steel is poured in by means of counter gravity. When the trees have been cast, they have to be cooled on a cooling conveyor (with nitrogen). The trees are then removed from their ceramic shells, by breaking the shell with a fully-automatic knock-off hammer. This removes most of the ceramic.
Phase 4: Finishing & Machining
The remainder of the ceramic is removed in the Finishing Department by means of steel, sand and/or water blasting. The next step involves sawing or vibrating the products off from the steel tree. The steel leftovers are sorted on alloy and may be melted again during the next casting badge. Finally, the ingate is sanded off, the product is machined, calibrated or heat-treated when necessary. After the final inspection, the products are ready for shipment to another satisfied Compass Hardware customer.
Precision investment casting in different industries
The lost wax method is very suitable for the production of large and medium-sized series of investment castings. These castings can be applied to various industries, thus expanding the scope of the compass hardware industry. Compass hardware customers operate in the following industries:
For well-known car manufacturers, Compass Hardware provides precision investment castings for engines, body engineering, gearboxes, and brake and fuel systems. Some examples of products delivered by Compass Hardware are: rocker arm (engine), fuel pump (engine), and shift cylinder (gear box).
Medicine and food
In the pharmaceutical and food industries, Compass Hardware provides a variety of high-quality components. Low roughness values, precise tolerances and the availability of special steel alloys are particularly decisive in this industry. Especially in the food industry, low roughness values are essential to ensure that bacterial growth does not occur when the surface is too rough. In addition, most precision castings are made of stainless steel to avoid the risk of corrosion (rust) and to ensure that the castings remain hygienic after contact with water. Examples of precision investment castings provided by Compass Hardware include: impellers of industrial pumps, ball valves, and valve housings of paint mixers.
Compass Hardware's castings delivered to its petrochemical industry customers include rotors and stators used in drilling systems, or burner heads installed on gas burners. The accuracy and sustainability of these precision castings are usually the decisive factors in choosing the lost wax precision castings.
In precision investment casting, compass hardware is a key player in the processing industry. Many components of compass hardware have been developed, usually cast into special alloys. These special alloys are used because these parts are usually used in corrosive (hostile) environments, environments with large temperature differences, or products that require extremely high toughness, strength, or lightness. Some examples of products provided by Compass Hardware include: synchronous gearboxes for hydraulic systems and grid plates for filter systems.
Contact Person: Cora