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Groundwork and Background:
In March of year 2004, Ningbo Ruyi Casting Co., Ltd. took the ownership of Fenghua Xinxin Casting Co., Ltd. and moved the whole metal melting and pouring production line to the production site of Ruyi forming an updated foundry with excellent technique and integral team.

Technique and capacity:

Ningbo Ruyi Foundry Co., Ltd. is your reliable source for Ductile iron casting, Grey iron casting .The molding process covers Resin Chemically Bonded Sand Cast, Resin Shell Cast, and Green Sand Cast. We can also offer the advantage brought by our strategic long-term partner with diversified technique( Investment casting for steel, ,carbon steel,stainless steel, pressure die casting and gravity casting for aluminum, alloy, aluminum & zinc , as well as precision machining with general machine tool and CNC machines) so as to make customization easy to carry out . Our integral service concept brought us high praise from our customers from all over the world. Most of our products are exported to Canada, USA, and Europe Spain , Italy, Switzerland, Sweden, and so on etc. and win good reputation among our customers .
Based on the land of size 6000 square meters, the foundry¡¯s monthly iron casting output capacity is up to 350 tons, and 80% of the produced castings are sold to overseas markets.

Business scope covers:

Machinery Parts £¬Automotive accessory£¬Valve Parts, Electric power transmission£¬Marine Parts £¬Railway parts£¬Electric motor body & accessories£¬Gear Cases & accessories£¬Chair Parts£¬Air compressor Parts & accessories£¬Manhole cover parts £¬Flange, Tappet parts £¬Sewing machine parts & accessories£¬Construction Parts & accessories£¬Mining accessories£¬Gardening Parts & Accessories£¬Machine tools industries,Radiator parts ,cylinder head & body ,Counterweight items,Rotor housing.

Certificate and Customization:

The foundry conforms to international standards and offers material analysis, heat treatment, non-destructive testing, proof and precision machining. With great efforts and carrying out our policy continuously which is to produce castings to meet your individual requirements, as well as monitoring each stage of production to guarantee high quality, we finally got certified by ISO9001:2000.

The foundry is located in the seaport city of Ningbo, China, it has convenient inland transportation and there are many sea-freight carriers towards different countries in the daily base. We cordially welcome customers from both domestic and overseas!


Mold Shell Casting


Mold Shell Casting

Benefits of Shell Mold Casting:

1. Shell molding process offers better surface finish.

2 Shell molding process offers better dimensional tolerances

3 Shell Molding Process offers higher throughput due to reduced cycle times.

A heated metal pattern is covered with a mixture of sand and thermoset plastic. This causes a skin of sand mixture to adhere to the pattern. This skin is removed from the pattern to form the "shell mold". The two halves of the shell mold are secured together and the metal is poured in the shell to form the part. Once the metal solidifies, the shell is broken.

The materials that can be used with this process are cast irons, and aluminum and copper alloys. Typical parts made with this process are connecting rods, gear housings, lever arms etc.

¡ The basic process for these molds is,

1. Create two mating patterns of desired shape.

2. Coat the molds with a shell (sand and binders, such as a resin) until desired thickness and other properties are obtained.

3. Cure the molds and remove the patterns.

4. The mold halves are mated and held firm while metal is poured.

5. The final part(s) is removed.

This technique can be very economical.

¡ Special care must be taken to assure venting for gasses, as the mold media is less porous.

¡ This method can easily use cores and chills to make complex molds.

¡ Graphite molds can be used for materials that would normally react with other materials used for the molds.

If you wanted to know more about Mold Shell Casting ,Please visit our Website:www.aluminum-die-casting.cn