Polishing Lost Wax Precision Casting Stainless Steel Casting Part
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Product Details
| Customization: | Available |
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| Casting Method: | Precision Casting |
| Casting Form Material: | Ceramics |
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Basic Info.
- Model NO.
- precision casting
- Casting Metal
- Cast Iron
- Casting Form Usage Count
- Permanent
- Surface Treatment
- Polishing
- Surface Roughness
- Ra1.6
- Coating
- Zinc oxide
- Machining Tolerance
- +/-0.02mm
- Standard
- GOST
- Certification
- CE, ISO 9001:2000, ISO 9001:2008
- Customized Support
- OEM, ODM
- for Media Type 1
- Water, a Mmonium Hydroxide, Antifreeze, Pesticides
- for Media Type 2
- Sulfuric Acid, Potassium Hydroxide, Hydraulic Oil
- Product Name
- Precision Casting Part
- Technology
- Investment/Precision Casting
- Casting Tolerance
- CT8-CT12 (GB/T 6414)
- Transport Package
- Carton
- Specification
- Stainless Steel, iron, Aluminum
- Trademark
- RC/OEM
- Origin
- Dalian, China
Packaging & Delivery
- Package Size
- 50.00cm * 50.00cm * 50.00cm
- Package Gross Weight
- 6.000kg
Product Description
1. Mold Making
This is the starting point of the entire process, determining the precision and shape of the final casting.
Design: Based on the 3D model (3D drawing) of the part provided by the customer, engineers design the mold (usually called a "molding mold"). This requires considering the metal's shrinkage rate, the draft angle of the wax model, the parting line position, and the layout of the gating system.
Machining: Using a high-precision CNC machine tool, the mold cavity is machined into a metal block (usually mold steel or aluminum alloy). This mold itself is a high-precision product, with its internal cavity shape perfectly matching the final casting.
Trial Molding and Acceptance: After the mold is made, a trial wax model is shot to check if the dimensions and surface quality of the wax model are up to standard. Only molds that pass acceptance will be put into formal production.
2. Wax Model and Shell Making
This is the core step in precision casting, aiming to create a robust refractory ceramic shell that encases the wax model.
Wax Injection (Making Wax Models): Specialized molding wax (such as paraffin wax, stearic acid, etc.) is heated and melted into a paste, then injected into the mold using a high-pressure wax injection machine. After pressure holding and cooling, the mold is opened, and the wax model, perfectly matching the shape of the part, is removed.
Tree Assembly: To improve efficiency, multiple wax models are manually or robotically welded onto a central wax casting system (including pouring cups, runners, etc.) to form a tree-like structure called a "wax tree."
Shell Formation (Crust Building): This is a repetitive and meticulous process:
Slurry Coating: The wax tree is immersed in a slurry made from extremely fine refractory powders (such as zircon powder, bauxite) and a binder (such as silica sol), ensuring even coverage of each part.
Sanding: While the slurry is still wet, a layer of coarser refractory sand (such as mullite sand, corundum sand) is immediately sprinkled on to enhance the thickness and strength of the shell.
Drying and Hardening: The mold with the completed slurry and sand coating is placed in a constant temperature and humidity environment to allow it to fully dry and harden.
This "slurry-sand coating-drying" process needs to be repeated 6 to 9 times until a sufficiently strong ceramic shell, typically 5-10 mm thick, is formed.
This is the core step in precision casting, aiming to create a robust refractory ceramic shell that encases the wax model.
Wax Injection (Making Wax Models): Specialized molding wax (such as paraffin wax, stearic acid, etc.) is heated and melted into a paste, then injected into the mold using a high-pressure wax injection machine. After pressure holding and cooling, the mold is opened, and the wax model, perfectly matching the shape of the part, is removed.
Tree Assembly: To improve efficiency, multiple wax models are manually or robotically welded onto a central wax casting system (including pouring cups, runners, etc.) to form a tree-like structure called a "wax tree."
Shell Formation (Crust Building): This is a repetitive and meticulous process:
Slurry Coating: The wax tree is immersed in a slurry made from extremely fine refractory powders (such as zircon powder, bauxite) and a binder (such as silica sol), ensuring even coverage of each part.
Sanding: While the slurry is still wet, a layer of coarser refractory sand (such as mullite sand, corundum sand) is immediately sprinkled on to enhance the thickness and strength of the shell.
Drying and Hardening: The mold with the completed slurry and sand coating is placed in a constant temperature and humidity environment to allow it to fully dry and harden.
This "slurry-sand coating-drying" process needs to be repeated 6 to 9 times until a sufficiently strong ceramic shell, typically 5-10 mm thick, is formed.
3. Casting
This is the crucial step in transforming the metal from a liquid to a solid casting.
This is the crucial step in transforming the metal from a liquid to a solid casting.
Dewaxing: The completed mold is placed in a high-pressure steam autoclave or combustion furnace, where hot water or high temperature completely melts and drains the internal wax, which is then recycled. This creates a precise cavity inside the ceramic shell.
Shell Firing: The dewaxed ceramic shell is then fired in a high-temperature furnace (approximately 1000°C). The purpose is to:
Completely burn off any remaining wax.
Further improve the strength of the ceramic shell, enabling it to withstand the impact of the molten metal.
Preheat the shell to prevent the molten metal from cooling too quickly due to excessive temperature differences during filling.
4. Melting and Casting: Simultaneously, a specific alloy grade is melted in an induction furnace and refined to the required chemical composition and temperature. The molten metal is then rapidly and smoothly poured into a fired, still-high-temperature ceramic shell.
5. Post-treatment: The casting encased in the ceramic shell is removed and undergoes preliminary treatment.
6. Shell Cleaning: After the casting has cooled in the mold shell, the outer ceramic shell is broken and removed using mechanical vibration or high-pressure water jetting, exposing the casting "tree" containing the gating system.
7. Cutting and Removing: Individual castings are cut from the gating system using equipment such as an abrasive wheel cutter, band saw, or hydraulic shears.
Product Description
IRON MATERIAL | |||||
ISO | JIS | rOCT | DIN | EN | ASTM |
400-18 | FCD400-18 | B440 | GGG40 | GJS-400-18 | 60-40-181 |
450-10 | FCD450-10 | B445 | GGG45 | GJS-450-10 | 65-45-12 |
500-7 | FCD500-7 | B450 | GGG50 | GJS-500-7 | 70-50-05 |
600-3 | FCD600-3 | B460 | GGG60 | GJS-600-3 | 80-60-03 |
100 | FC 100 | C410 | - | GJL-100 | - |
150 | FC 150 | C415 | GG15 | GJL-150 | No.20 |
200 | FC 200 | C420 | GG25 | GJL-200 | No.30 |
250 | FC 250 | C425 | GG25 | GJL-250 | No.35 |
STEELMATERIAL | |||||
ISO | JIS | rOCT | DIN | EN | ASTM |
X5CrNi18-10 | SUS304 | 08X18H10 | 1.4306 | GX2CrNi19-11 | 304/304L |
ZG07Cr19Ni9 | SUS316 | 03X17H14M2 | 1.4308 | GX5CrNi19-10 | 316 /316L |
X2CrNiMoN25-7-4 | - | 02X25H7M3 | 1.4410 | X2CrNiMoN25-7-4 | S32750 |
X2CrNiMoN22-5-3 | SUS329J3L | 03X22H6M2 | 1.4462 | X2CrNiMoN22-5-3 | S31803 |
X17CrNi 16-2 | SUS 431 | 14X17H2 | 1.4057 | X17CrNi 16-2 | 431 |
X7CrNiA17-7 | SUS 631 | 09X17H7HO | 1.4568 | X7CrNiAl17-7 | 631 |
200-400 | SUS410 | 12X13 | 1.4016 | X10Cr13 | 410 |
230-450 | SC450 | 25n | 1.0446 | GP240GH | WCA |
GX40NiCrSi2512 | SCH13X | 40X24H912Cr | 1.4837 | GX40NiCrSi2512 | HH |
GX40NiCrSi2520 | SCH21 | - | 1.4848 | GX40NiCrSi2520 | HK |
COPPERMATERIAL | |||||
ISO | JIS | rOCT | DIN | EN | ASTM |
CuSn4 | C5101 | BPOφ4-0.25 | CW450K | CuSn4 | C51100 |
CuSn6 | C5191 | BPOφ6.5-0.15 | CW452K | CuSn6 | C51900 |
CuZn20 | C2400 | n80 | CW503L | CuZn20 | C24000 |
- | - | 168 | CuZn33 | C26200 | |
CuZn37 | C2720 | 63 | CW508L | CuZn37 | C27200 |
CuZn37Pb1 | C3710 | nC60-1 | - | CuZn39Pb0.5 | C37100 |
CuZn39Pb1 | C3771 | nC59-1 | CuZn39Pb2 | CuZn40Pb2 | C37710 |
Cu-FRHC | C1100 | M1 | CWO04A | E-Cu58 | C11000 |
CuZn10 | C2200 | 190 | CW501L | CuZn10 | C22000 |
CuZn15 | C2300 | n85 | CW502L | CuZn15 | C23000 |
ALUMINUMMATERIAL | |||||
ISO | JIS | rOCT | DIN | EN | ASTM |
Al-Si7Mg | AC4C | AN9 AK7 | ENAC -42100 | AISi7Mg | A356 |
Al-Si12 | AC3A | AN2 | ENAC -44100 | AISi12 | 413 |
AISi8Cu3 | AC4B | AK8M3 | ENAC-46000 | AISi8Cu3 | A380 |
Al-Si10Mg | AC4A | AT4 AK9 | ENAC -43300 | AISi9Mg | 360 |
Al-Si5Cu3 | AC2A | AK5M2 | ENAC -45100 | AISi5Cu3 | 363 |
Al-Si6Cu4 | AC2B | AK5M | ENAC -45000 | AISi6Cu4 | 319 |
Al-Mg10 | AC7B | A118 | ENAC -51200 | AIMg10 | 520 |
Al-Si12Fe | ADC1 | AN2 | ENAC -47100 | AISi12 | A413 |
Sand casting is a process of creating metal parts by shaping sand molds from a pattern of the desired
shape and then pouring molten metal into the mold.
shape and then pouring molten metal into the mold.
Surface treatment
Electroplating, Galvanizing, Sand blasting, Spray coating, Spray painting, Electrophoresis, Polishing, Antirust
treatment etc.
Main Products
Company Profile
RUICI METAL PRODUCTS (DALIAN) CO., LTD was established in2005 at Dalian (China) as a manufacturer and trading company , and has gained an internationally acknowledged reputation in this segment. We engage in many kinds of metal products,mainly OEM and ODM business model. Our factory produce cast iron casting and CNC machining parts which are used for valve, pump, mineral, construction, agriculture machinery. Meanwhile, we have long term cooperation with a number of skilled sub-factories, engaged in steel, stainless steel, copper, aluminum, zinc products trading business.
Our clients include several world market leaders, medium-sized enterprises, publicly traded companies, and multinational enterprises, for whom RUICI provides a complete procurement service.
Our Service
Certifications
Exhibition
Packaging & Shipping
FAQ
1. Who are we?
We are based in Liaoning, China, start from 2005,sell to Western Europe(60.00%), North America(10.00%), Oceania(10.00%), Southeast Asia(10.00%), South Asia(10.00%), There are total about 40 people in our office.
2. How can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.What can you buy from us?
Castings, Forgings, sheet metal, CNC Machining, OEM service(rubber and plastic)
4.Why should you buy from us not from other suppliers?
Over 20 years export experience on casting and machining business, advanced production(CNC and machining center) and inspection equipments (CMM), fully quality control system(ISO 9001:2008), perfect after-sales service. Main market Germany, Japan, USA.....
5.What services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,DDP,DDU;
Accepted Payment Currency:USD,EUR,JPY,CNY;
Accepted Payment Type: T/T,L/C,Western Union And More;
Language Spoken:English,Chinese,Japanese And More;
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