ISO 9001 precision stainless steel aluminium investment casting

With the development of mechanical and electrical product parts in the direction of thin-walled, complex, and lightweight, aluminum alloy precision casting technology has received great attention. The dimensional accuracy and surface quality of castings produced by investment precision casting are higher than other casting methods. Wide application prospects. However, it has many shortcomings such as many process parameters and mutual influence, long generation cycle, thin casting wall, and high scrap rate of complex curved surfaces.

Our method for stress cracking of stainless steel investment castings includes the following steps: Step 1: Open a new gate: Open a transition arc on both sides of the original gate to form a new gate; Step 2: Open gate stress Groove: Cut a section of arc groove near the stress concentration part of the new inner gate; Step 3: Group tree: When grouping the tree, the new inner gate is bonded to the center of the casting beam structure, and there is a transition arc on the side and the beam structure Connected, and the other side is bonded with the riser. Step 4: Shell making: The shell is made of silica sol paint when making the shell, and the number of shell layers is 78; Step 5: Pouring: Pouring in an intermediate frequency furnace during pouring. This method The contact cross-sectional area of ​​the new inner gate and the casting beam structure is unchanged, which can ensure the feeding of the casting beam structure. The bottom injection gating system scheme is adopted, and the reasonable casting parameters are used to ensure that the castings with no shrinkage cavity and porosity defects are obtained .

Description:

Competitive Advantage:

1 . All of our products are strictly inspected and tested before packing in factory.

2 . Good team for quality and delivery time control.

3 . Near Shanghai port and Ningbo port.

4. We have a team of professional engineers to supply related technology help if customers

needs our tech-assistant.

Packing:

According to the customer specification

Casting parts Process flow chart

Our Precision Casting Manufacturing Process

Our Factory

Founded in 2003, Ningbo Suijin  Machinery Technology is located in Ningbo city ,Zhejiang Province, We manufactured all kinds of lost wax investment castings and machining parts or called precision investment castings , material including carbon steel, alloy steel, and stainless steel. we also can according to the customers' requirement to compound the material, Our factory has a floor space of 33,000 square meters and another 18000 square meters of building area, which contain both casting foundries and CNC machining area. The two advanced lost wax casting and investment casting production lines have a capacity of 5000 tons lost wax castings and 1000 tons investment castings per year.

To keep the good quality parts we had set up our lab center which is advance center in our area. Our inspection equipments includes Spectrometer, Metallographic Microscope, Tension Tester, Low Temperature Impact tester, X-ray tester, magnetic particle detector, UT, CMM, and so on. every year we will investment to buy more equipments to develop our business.

We supply parts in a wide range in industries that includes automotive, boats, Oil machinery, agricultural machinery, building equipment, valves, pumps, electrical machinery, hardware, transmission, etc. we have produced more than 1000 different productions. more than 95% are exported to America, Canada, France, Germany, Denmark, Britain, Japan, etc.

Our company has more than 300 employees, including 17 engineers and 15 QC. every year some of employees will out training to improve their knowledges and skills. we had got ISO/TS16949:2009 and PED certifications.

We strive to provide the best quality and service while maintaining the basic principles of respect and honesty. We sincerely invite global customers to visit our company, and hope to establish a long term business relationship