HULK Metal Sand Casting Foundry

Our sales manager will understand what you want in-depth, calculate the price, and formulate a perfect solution based on the casting drawings, quality, demand, packaging method, delivery time, and other requirements.

The sand casting mold is divided into sand mold and sand core. Mold-making refers to making molds that can produce sand molds and sand cores in batches. Because the molds used in sand casting processes with different binders are quite different, and the price gap is large. Kindly contact our engineers or find out in the Blog if you want to know about sand casting mold making.

We will make trial samples after the mold is made. We will first test the castings' shape, size, and various properties according to your quality requirements. After confirming they can meet the conditions, other samples will be sent to you for testing. Finally, ensure no problems, and then start order scheduling, production, packaging, and after-sales services.

We will purchase sufficient raw materials for order production and determine whether to use machine or manual molding according to the order size. The larger the order, the more costs (time, money) saved by using mechanical molding. On the contrary, the smaller the order, the more suitable it is to use artificial styling. The sand-casting foundry will strictly follow the requirements to complete the order.

Making casting molds is placing the casting mold in a sandbox and pouring in pre-mixed sand with a binder. After vibration, the sand is solidified to make a sand mold. The sand core is placed at the designated position of the sand mold. The sand mold is divided into upper and lower parts. Close the boxes with the pouring opening facing upwards, and remove the sandbox to get the mold. Choosing the appropriate method of making casting molds can effectively reduce casting costs.

Melting metal according to casting material requirements. Put metal into the crucible according to the proportion, and need to add some materials during the heating process. The familiar crucible heating methods include open flame heating and electromagnetic heating. Larger sand-casting foundries now use electromagnetic heating because this method is more environmentally friendly.

Pour the liquid metal into the mold along the pouring opening. The temperature of the liquid metal and the speed at which it is poured have very high requirements, and this needs to be determined based on the size, complexity, material, and other factors of the casting. Wait for it to cool after pouring. Kindly contact our engineers for more details if you have an order that requires production.

The cooled castings need to go through shakeout (the sand is cleaned and recycled for continued use) and cutting (there are grinding wheel cutting, laser cutting, water cutting, etc., which need to be determined according to the size and complexity of the castings), shot blasting (removing the castings) Surface impurities) and other processes to obtain semi-finished castings.

Heat treatment is performed according to the performance requirements of castings to improve hardness, strength, and wear resistance, reduce hardness, improve cutting performance, eliminate internal stress generated during casting, forging, welding, etc., and improve surface wear resistance and corrosion resistance. The primary heat treatment methods include annealing, normalizing, quenching, and quenching and tempering.

We will machining castings to adjust holes, threads, surfaces, tolerances, etc. Machining changes the dimensions of the casting, so sufficient machining allowance needs to be left when making sand casting molds. After mechanical processing, castings also need surface treatment (passivation, powder coating, galvanizing, etc.) to increase corrosion resistance for transportation and storage.

Packaging of castings completed as required. Packaging materials and methods can be customized. We help many customers print their logos on the boxes to increase their brand awareness. The solution will be mentioned in the kind of packaging. We will verify them with you. Kindly contact our engineers to get a complete solution.

Our Freight Consultation Center can get first-hand information and quotes from shipping companies. After the goods are delivered, we will start after-sales service. We provide returns, exchanges, replenishment, and other quality assurance services to ensure the quality of your order. Kindly contact our sales manager to learn more.