What is Door hinge?
A door hinge made from investment precision casting process would likely be a high-quality door hinge known for its accuracy, fine detail, and high strength. This process allows for the production of complex shapes that might be difficult or impossible to achieve through other manufacturing methods, such as stamping ang bending process.
Such door hinges would typically be durable, with smooth surfaces and tight tolerances, making them suitable for applications where precision and reliability are essential, such as in high-end furniture, architectural applications, or specialized industrial equipment where smooth operation and longevity are crucial.
01 Part name
Door hinge
02 Application
Door and window
03 Material
Stainless steel
04 Process
Investment casting
& Machining
05 Casting method
Thermal Gravity Casting
06 Surface finished
As raw cast
(Shot blasting)
Part application-Auto industries
Investment castings for automotive applications require intricate structure, high precision, and reliable performance. Our services focus on high complex investment casting parts. We offer reliable and versatile parts manufacturing solutions to global automotive OEMs.
Door & Window fittings
Typical investment casting part we produce include:
1: Casting Hinges
2: Door Hardware
3: Adjusters
4: Locks body
5: Window slider Bracket
Electrical Equipment
Typical investment casting part we produce include:
1: Electric Power Fitting
2: Suspension Clamp
3: Casting Key
4: Connecting Rod
5: Cable Hardware Fittings
Railway Castings
Typical investment casting part we produce include:
1: Rail Way Door hinges
2: Bearing bracket
3: Centre plates
4: Coupling
5: Explosion-proof valves
Production process introduction
1. Tooling Build
Design and building a metal die from Aluminum
2. Wax Injection
Injecting melted wax under high pressure into the cavity to get a pattern that replicates the finished part geometry
3. Wax Pattern Assembly
The wax patterns are assembled onto runners and into a finished tree which is ready to be dipped.
4. Slurry Coating
The assembly is then dipped into a high-grade ceramic slurry to build a ceramic shell around the wax tree.
5. Ceramic Shell build & Dry the shell
After the slurry coating is done, particles of sand are dropped onto the surface of the wet tree assembly. This helps to thicken and strengthen the layer of coating on the wax assembly surface, repeat 5-6 times.
6. De-waxing
Send the shell into pre-heating oven and then the wax inside the newly built shell is now removed. Dewaxing is done using a steam-dewaxing autoclave or flash fire furnace.
7. Melting & Pouring & cooling
Now the desired molten metal is poured into the pre-heated empty mold cavity, The mold then sits to allow the molten metal to cool and solidify which then becomes the final casting.
8. Shell Removal
The shell material is then removed through processes hammer knockout, vibration, and steel grit blasting
9. Cut-off
The finished parts are then cut free from the gating and runner system.
10. Grinding pouring gate
The ingate which remained after the sawing process, is grinded from the casting.
11. Final inspection
Once the finishing operations are done, the parts are inspected for surface and sub-surface defects.
12. Packaging & Delivery
For oversea shipping, we packaging with standard wooden pallet with size limited 1200*800mm
RFQ handle process
Get contactYou can find our contact info for further communication in "Contact US" column.
Send drawingThe 2&3D drawing format can be PDF, STEP, DWG, DXF and soon, can be sent via email. Wechat, WhatsApp, link.
Get quotationAfter clear the demand of customer, we can send you the quotation with PDF format for documentation.
Sign NDAFor requirements for confidentiality of drawings, we can signed the NDA before you send drawing.
Finish feasibility studyThe feasibility study of drawing is most key point to ensure the part can be fully meet drawing specifications, which is include material, dimension, surface treatment, and testing request.
Shipping and lead time
1
Delivery shipping port
The nearest shipping port is Ningbo port, the Port of Ningbo-Zhoushan is the busiest port in the world in terms of cargo tonnage. It handled 1.32 billion tons of cargo in last year.
2
Packaging solution
Normally we use the European standard pallet for oversea market, and also input the anti-rust bag for carbon steel parts for rust protection.
3
Available shipping method
We can support various shipping method, including sea shipping, air shipping, train shipping, and DHL, FedEx, TNT, UPS and so on.
4
Samples Leadtime
For CNC machining parts, the lead-time is about 5-10 days.
For casting and machining parts, it's about 25-30 days.
For casting and machining and surface treatment parts, about 30-40 days.
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