Search results

Help Support HMEM:

  1. Xijian Su

    Cast a water pump impeller with phenolic resin sand

    Phenolic resin sand preparing 2130 resin & hardener. Fine sand. I mixed the sand with the mixture of resin and hardener (10:0.8). 30-40g of the resin to 1000g sand. The used sand can not be reused.
  2. Xijian Su

    Cast a water pump impeller with phenolic resin sand

    I am going to make a water pump for my engine. The pattern was made with Acrylic and wood. Since the part is so small, I decided to use the phenolic resin to bond the sand. Sand core making. Ready for casting.
  3. Xijian Su

    Cast an inline 4 engine block with plaster mold

    A1: 3D printing. A2: All parts of the plaster mold were casted in silicone rubber patterns.
  4. Xijian Su

    Cast an inline 4 engine block with plaster mold

    Thanks! The chemical formula of gypsum powder is [CaSO4.½H2O]. When you mix it with water, a chemical reaction will occur. The water combined with gypsum is not ordinary water, but crystal water. It becomes a part of Crystal structure a. And It doesn't evaporate like ordinary water do...
  5. Xijian Su

    Cast an inline 4 engine block with plaster mold

    You can refer to my recent post on how to make a mold.
  6. Xijian Su

    Cast an inline 4 engine block with plaster mold

    Hello, Willy! A1: I sent the file to an online store for printing, and the machine they used was DLP. So I do n’t know the printer settings. A2: The model printed by DPL printer has a fine finish. So I didn't do any finishing work on it. A3: In order to find the right method, I experimented...
  7. Xijian Su

    Cast an inline 4 engine block with plaster mold

    Mold making process (With schematic diagrams) I drew some diagrams to illustrate the mold making process. Core box making process The following is a schematic diagram of the manufacturing process of the core box. You need to prepare some sculpting clay, silicone rubber and release agent at...
  8. Xijian Su

    Cast an inline 4 engine block with plaster mold

    The 3d plan of pattern is different from the engine plan.
  9. Xijian Su

    Cast an inline 4 engine block with plaster mold

    A1: I have only one furnace, so that I can't put the baked plaster mold into furnace to keep it hot while melting aluminium and pouring. When I poured the metal into the mold, the mold cracked. But it doesn't matter, you can grind the casting after it cools down. A2: There's no casting plaster...
  10. Xijian Su

    Cast an inline 4 engine block with plaster mold

    Thank you! Xijian Su
  11. Xijian Su

    Cast an inline 4 engine block with plaster mold

    My engine drawing is referenced to a 15cc inline 4 model engine designed in 1940s which name is "seal".
  12. Xijian Su

    Cast an inline 4 engine block with plaster mold

    To prevent the plaster mold from cracking. I slowly raised the temperature. No faster than 150 'C / h. Here's the curve of temperature I followed. After nearly a whole day later, the plaster mold finished. Then I poured the metal into the mold. After a few minutes, I break the mold. The...
  13. Xijian Su

    Cast an inline 4 engine block with plaster mold

    Hallo to all! Recently, I started my first project. I tried to cast aluminum alloys with plaster mold. Design the engine parts This is the engine block designed with SOLIDWORKS. It takes me a week to build the 3D model. Design the mold for 3D printing To make the plaster mold, I've got...
Top