valve OEM casting

Wooden case, pallet, or as the customers'requirements for the castings . If the customers allowed ,we will choose the suitable package for the customers .
Generally we choose the 20 container for the product of the largest weight .we are promised that we will make the best package for the producet at the reasonable price.

Specifications

Casting
(1) Best price according to different products
(2) ISO 9001 quality control
(3)mature casting experience

OEM Casting

OEM service

Material:  iron, gray iron, ductile iron, steel, stainless stee,l carbon steel, alloy

Process:  sand casting ,investment casting ,die casting and so on

Standard:  GB ,ASTM ,DIN ,JIS

Weight range: 5g-20ton

Casting process: client drawings-pattern-raw casting-maching-packing and delivery

 Quality control:

(1) Machinery properties and Chemical components testing after raw casting

(2)Hardness checking after heat treatment

(3)Dimensions testing after maching

Service

drawings→mould making→raw casting→sandblasting→rough machining or finish machining→surface treatment→packing→delivery

drawings

1.Confidentiality – Be confidential to the customers’ drawings, we change the customers’ name on the drawings into our name in case of disclosing the information.
2.Check- Technician checks the drawings and confirms dimensions. And let the file department to archive.
3.Control – After examining and stamping the drawings, the file department issued them to the relevant departments. During production, if the customers change the drawings or appearing other reasons, the relevant departments must take the original drawings to the file department to replace.
4.Confirmation - Making the production process and inspection process according to the drawings, and then confirm the production tracking form.

Mould making

1. Choose the suitable pattern shop according to production tracking form.

2. The inspector will track the quality and duration of the pattern making process according to the production tracking form.

3. After inspection the inspector will send the test reports and photos to our customers.

4. After pattern approval we will make the first sample.

5. We will inspect the dimensions and material according to the drawings’ requirements, meanwhile we will send the relevant test reports and photos to our customers.

Raw casting

1. Production plan will be made according to the production tracking form.

2. During production process, we use advanced inspection equipments, to ensure internal quality of the product. The inspectors will track the quality and duration according to the production tracking form. The inspectors will feedback the problems of the quality and process, and improve quality gradually.

3. We will check the test bar and record relevant information to each bulk.

4. We will send the photos and test data of each step to customers and let them to know the status of their products.

Maching

1. We will produce the samples according to the confirmed casting process.

2. We will send the test reports and photos to our customers after checking.

3. We will train the relevant staff before producing according to the machining and inspection process.

4. We will do the production based on the production tracking table after the sample being approved.

5. The inspector should track the quality and time of the products during the producing. Any problems on quality and process must be feedback to our customers. Send the producing status and photos to the customers in time.

6. Do the finial inspections to the products and send the relevant data and finished products’ photos to the customers.

Packing and delivery

1. Determine the size & material of the box according to the shape & number of products.

2. Taking different anti-rust protection to products according the delivery time. Such as antirust, oil or according to customers’ requirements.

3. Taking measures to prevent fragile based on different products.

4. Putting dimensional reports, chemical & mechanical documents, test bar and photos into the packing box.

5. Sending the photos of whole packing process to customers.

6. Sending the feedback table to customers after delivery. Because we hope customers could give us reasonable suggestions, in order to improve the quality of our products gradually.

metarial	process	Weight	Standard
Cast iron	clay sand casting, furan resin sand casting, shell mold casting	0.5-5000kg 50-5000kg 0.3-20kg	GB ISO ASTM DIN JIS
Cast steel	water-glass sand casting, water-glass investment casting, lost-wax investment casting	5-1500kg 0.05-50kg
Non-ferrous metals	Die casting, sand casting, lost-wax casting	0.1-200kg 0.3-20kg

 

 

Casting process	Materail
Investment casting	ASTMA148class80-40,  ASTMA148Class80-50 A572GR60,  AISI316 stainless steel, ST52, S355, GS-52.3,  ASTMA48Class30B CK45, 1.7218-25CrMo4
Sand casting	GGG50,GGG30, ASTMA48 class25B,  42CrMo4, C22 ductile iron 65-45-12,  AlCuMgpbF34, EN-JIS-500-7 EN1563 ,  EN10293-GE300 HT200, DIN17205-GS-25CrMo4
Die casting	C1040 Alsi12

Address: No.38,Qian Yang Economic Development Zone, Dandong, China

Tel: 0086-415-7167585

Fax: 0086-415-7817585