HULK Metal Aluminum Sand Casting Foundry

We will form a service team, including technology, sales, and production, to provide you with one-to-one service. We will reduce costs as much as possible and design a complete solution based on your requirements while ensuring quality, delivery time, and product quantity are up to standard.

We will determine the shape and size of the mold cavity based on the tolerances of the drawings, required processing methods, and other factors, design and make trial molds for the casting mold and core, and then conduct sample trial production.

After the mold is made, a series of processes, such as sand filling, sand vibrating, box closing, metal melting, and pouring, are carried out to complete the production of the sample. We usually make multiple samples for you to test. Sample making is usually free. Kindly contact our sales manager for details.

After the sample passes the test, we will start order production. For large orders, we will choose fully automatic molding and pouring. This can save a lot of labor, time, and capital costs. For small orders, we will choose hand-made molding with a higher degree of freedom, which can save costs.

Fully automatic molding can achieve one-time molding. When making castings by hand, you need to make two upper and lower sandboxes. First, fill part of the sand with a vibrator, put the casting mold into it, then fill it with sand and vibrate. Open the sand mold, take the mold out, put the sand core in, and then close the box to complete the mold-making.

Workpieces made of ADC 12, ADC 10, aluminum Y102, aluminum Y112, aluminum Y113, AC3AM, ZLD101, and aluminum A356 can all be produced using the sand casting. The metal smelting process requires the addition of specified materials at specific times. Kindly contact our engineers if you would like to learn more.

Liquid aluminum is poured into the mold cavity along the pouring opening at a specific speed. During the pouring process, attention should be paid to the temperature of the aluminum water and the pouring flow rate. Wrong temperatures and flow rates can cause severe defects in castings, lengthen order lead times, and increase trial and error costs. With our extensive experience, we can minimize the probability of this problem occurring.

After the casting is cooled, the cast slab is obtained through unpacking, sandblasting, cutting, and other processes, and then shot blasting is used to clean the surface impurities of the cast slab to make the surface smoother.

Aluminum sand castings need to be heat treated according to performance requirements. Through processes such as annealing, quenching (solid solution treatment), aging, and cycle treatment, the strength and hardness are improved, the structure and size are stabilized, and internal stress is eliminated. Kindly contact us if you would like to know if your casting needs heat treatment.