The best quality and faith bring us the good market, such as USA, CANADA, BRAZIL, AUSTRALIA, UK, GERMANY, ITALY, SPAIN, TURKEY, ALGERIA, DUBAI, RUSSIA, UKRAINE, SINGAPORE, MALAYSIA etc. “Made in DUNHUI” in many Countries.
“DUNHUI” is your correct choice. Welcome to visit www.dunhuicn.com
1. Investment Casting Stainless Steel Screw Cap/Pipe Mechanical Seal Parts
2. Product Process
Sand casting is relatively cheap and sufficiently refractory even for steel foundry use. In addition to the sand, a suitable bonding agent (usually clay) is mixed or occurs with the sand. The mixture is moistened, typically with water, but sometimes with other substances, to develop strength and plasticity of the clay and to make the aggregate suitable for molding. The sand is typically contained in a system of frames or mold boxes known as a flask. The mold cavities and gate system are created by compacting the sand around models, or patterns, or carved directly into the sand.
3. Investment Casting Picture
| Process | Investment Casting,Silicon sol casting, |
| Material | Stainless Steel,Carbon Steel |
| Material Grade | GB, ASTM , AISI , DIN , BS, |
| Weight | 0.01 kg~150kg |
| Accuracy | Class CT4~CT11 |
| Surface Roughness | UpTo Ra1.6~Ra6.3 |
| Applied Software | proe,catia,ug,solidworks,cad,pdf,etc |
| Production Capacity | More Than 100T Per Month |
| Heat Treatment | Anneal,Quenching,Normalizing,Carburizing,Polishing,Plating, Painting,etc |
| Machining Equipment | CNC Center , CNC Machines, Turning Machines,Drilling Machines , Milling Machines, Grinding Machines,etc |
| Measuring Tool | CMM , Projector, Vernier Caliper, Depth Caliper, Micrometer,Pin Gauge, Thread Gauge , Height Gauge,etc |
| QC System | 100% Inspection Before Shipment |
| Report | 100% Report with shipment |
| Transport | Air or Sea |
4.Technical Standard:
Certification: ISO9001:2008
5.Personnel station:
Have professional salesmen, and 6 Engineers, More than 30 inspectors.
6.Quality and Safety:
We have a very strict and complete quality control system, which promises that goods we produced are always of the best quality, the enough inspectors to ensure that each product can meet the quality requirements of customers. We do the final inspection in own factory with ISO 9001:2008.
7.Location:
DUNHUI has a convenient location at the city’s exporting business zone, Dongli District. We are only 19 km to Tianjin International Airport, and very close to major highways,TIANJIN port. We look forward to work with your business!