Valve Body Casting For Shipbuilding
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2. Operating Structure
3. Foundry1 Overview · Huawei Foundry
| Established in 2005, 26,600 SM under roof, 245+ employees,Annual capacity 20,000 tons. Utilize advanced lost wax, lost foam, shell moulding casting processes. Equipped with modern energy saving and eco-friendly production lines. Automatic and semi-automatic wax and shell making, pouring, heat treating equipment. |
4. Foundry2 Overview · New Material Foundry
| Established 2022, 40,000 m² under roof. Equipped with more advanced lost foam casting and heat treatment automatic |
5. Machining1 Overview · Metal-Headquarters
| Established in 2009 13,500 m² under roof 215+ employees Advanced high and CNC equipment 50+ vertical and horizontal machining centers 80+ CNC machines (lathe, milling, drilling ) 80+ additional supporting equipment | Product Offering: Machined steel castings Machined stainless steel castings Machined iron castings Machined aluminum castings Machined forgings |
6. Machining2 Overview · Industry
| Established in 2022. 30,000 m²under roof. Equipped with more advanced and high-end processing equipment include Okuma machining centers, gantry machining centers, laser cutting machines, flame cutting machines, bending machines, hydraulic presses, and welding robots; intelligent paint coating lines, powder coating lines and smart logistics systems (AGV), integrating seamlessly with PLM, ERP, and MES to deliver high-value-added assemblies and one-stop services. |
7. Casting
| Our four casting processes is able to meet customer's wide range of needs for castings of different grades and qualities. Covering different grades of casting precision: CT6 - CT8 surface roughness: Ra6.4 - Ra25 um weight range: 0.1 - 500kg |
8. Lost Wax Casting · Manufacturing Process
9. Lost Wax Casting · Key Casting Equipment
10. Lost Wax Casting Process Technology Overview
| Casting Process | Lost Wax Casting (Investment Casting) |
| Material Range | carbon steel, alloy steel, stainless steel |
| Material standard | GB, ASTM, AISI, DIN, BS, JIS, NF, AS, AAR |
| Max Linear Size | 1000mm; Max Diameter Size: 600 mm |
| Min Thickness | 3mm |
| Casting Weight Range | 0.10 - 80kg |
| Casting Dimension tolerance | CT6 - CT8 |
| Casting Surface Roughness | Ra6.4 - Ra12.5 um |
| Industry Experience | rail, automobile & truck, construction & mining equipment, forklift, agricultural machinery, shipbuilding & marine, petroleum industry, construction, valve and pumps, electric motors, hardware, power equipment |
11. Lost Foam Casting
12. Shell Moulding
13. Machining
| Starting from machining and dedicated to machining for 30 years, Qinhao is matchless regardless of technology, equipment and capacity in the industry. |
14. Key Machining Equipment
15. Key Machining Equipment/Machine List
| Horizontal Machining Center(4 Axis): 11 | CNC Milling: 10 |
| Vertical Machining Center(4 Axis): 56 | CNC Drilling: 5 |
| Gantry Machining Center: 1 | Drilling and Tapping Center: 7 |
| Turn Center: 1 | Milling Machine: 6 |
| CNC Lathe: 35 | Drilling Machine: 5 |
| Turning Milling Center: 21 |
| Total 200+ Various Machining Equipment |
16. Machining Specification
| Machining Material Range | arbon steel, alloy steel, stainless steel, cast iron, aluminum alloy, copper alloy |
| Main machines | four-axis horizontal machining center, four-axis vertical machining center, CNC milling machine, CNC lathe, turning and milling center, drilling and tapping center, CNC drilling machine, multi-station special machine |
| Machine Accuracy positioning accuracy | ±0.004mm, repeatability±0.003mm |
| Maximum Cutting Diameter | φ1000mm |
| Maximum Machining Length | 1800mm |
| Maximum Travel (x,y,z axis) | 1800x850x700mm |
| Maximum Spindle Speed | 12000 r/min |
| Maximum Workpiece Weight | 2500kg |
| Machining Surface Roughness Range | Ra0.8 - Ra6.3 um |
17. Cutting Plate & Sheet Metal, Welding
18. Quality Control · Credentials
19. Test Facilities Capabilities
| 1. Chemical analysis |
| 2. Metallography |
| 3. Tensile strength |
| 4. Yield Strength |
| 5. Elongation rate |
| 6. Shrinkage rate |
| 7. Impact test |
| 8.Harness test |
| 9. Dye Penetrant |
| 10.Radiography (RT) |
| 11.Magnetic Particle (MT) |
| 12.Ultra-Sonic (UT) |
| 13.Surface roughness test |
| 14.Microscopic Measurement |
| 15.3D Scanning |
| 16.CMM |
20. Key Testing Equipment
21. APQP and Inspection Report
| APQP-Casting Process Flow Diagrams Control Plan Process FMEA Casting Process Instruction Solidification Simulation Report Heat Treatment Work Instruction Casting Final Quality Control WI Visual Inspection VI For Surface Irregularities |
| APQP-Machining Process Flow Diagrams Control Plan Process FMEA Machining Process Instruction Gauge List And Validation Plan Final Quality Control Work Instruction |
| Sheet Metal Welding Quality Management Documents Process Flow Diagrams Control Plan Process FMEA Operation Instruction for Welding Operation Instruction for Cutting Welding Penetration Report Equipment Maintenance Plan and Guidance Final Quality Control Work Instruction for Sheet Metal Final Quality Control Work Instruction for Welding |
| Other Quality Document PPAP Checklist Measurement System Analysis Study Process Capability Studies Machine Capability Index Overall Equipment Effectiveness Corrective Action Report(8D) Continuous Improvement Implementation Plan Lean Manufacturing Continuous Improvement Plan Packaging Instruction |
| Inspection Report Material Test Report Magnetic Particle Inspection Report Ultrasonic Examination Report Radiographic Test Report Destructive Test Report Coating Test Report Visual Inspection Report Casting Inspection Report Dimensional Inspection Report CMM Report |
22. Competition advantages
| Advantages 1:High Engineering and Technical Capability | Our industry top engineering technical team is with special skills and rich experience in product design, casting, heat treating and machining fields.. Based on customer needs, from the beginning of product development we offer casting solution to optimize product design, reduce costs and create best value for customers. Special techniques enable us to be competent with key processes at Wax Injection & Shell Making when manufacturing parts with sophisticated inner structure. Use casting simulation analysis system software to ensure 100% one-time success of PPAP sample. |
| Advantages 2: Advanced Inspection Equipment,Process & Strong Quality Assurance Capacity | Our full range testing equipment is leading in the industry to guarantee we continually provide only high-quality products for |
| Advantages3: Great Customer Service | Our staffs are with abundant commercial experience, good language ability, and rich foundry and mechanical background to provide customers with superior service. We are committed to providing customers with accurate, careful and speedy service. Provide fast and effective feedback within 48 hours for Quotation, Quality Complaints and Emails. Information-based management system is established and is driven by ERP and PMC system to ensure 95% on time delivery rate and aim for 99.9%. |
| Advantages 4:Powerful deep-processing capability is core competitive advantage that makes us different from others in the industry. | The machining facilities and foundries have independent management teams to maximize focus and skill sets. We have transformed and upgraded to a process focused manufacturer with expanded manufacturing capabilities and is committed to being a one stop solution provider for top-end markets. High technical expertise of precision machining castings and related cutting plate, sheet metal, welding and assembly capabilities is the best choice for you. |
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