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스테인리스 스틸 분실 왁스 주조의 가장 일반적인 문제

2020-10-02

스테인레스 스틸 분실 왁스 주조에서 가장 일반적인 문제
stainless steel lost wax casting

에서  스테인레스 스틸 손실 왁스 주조 공정이 형이 사용된다. 첫 번째는 금속으로 만들어졌습니다. 거꾸로 된 형태로 쉽게 작업 할 수 있습니다. 이것은 일반적으로 두 부분으로 나뉩니다. 그런 다음이 몰드를 왁스로 채워 모델을 만듭니다. 따라서 최종 모양입니다.

로스트 왁스 주조 모델은 스테인리스 스틸이 어떻게 작동합니까?

These models are placed in a box. Moreover, these are filled with foundry sand. Later, an operator gives it heat until the wax melts. Similarly, he drips and another mold with the inverted shape of the piece.

This yes is filled with the molten metal. In addition, it gives rise to the piece. The advantages of this process are that several parts can be produced. Similarly, all parts come in a series with a high degree of detail and practically finished. Subsequently, the disadvantage is that the size of the pieces is limited.

What is casting?

The casting is the process where we mold different objects for multi purposes. In simple words, a metal comes in liquid state first. Later, it goes into a mold. Later, we can develop different shapes via 스테인리스 스틸 로스트 왁스 주조. So, we can use these molds for various industries.

In many cases, casting is the simplest and most economical process of producing a part.

The foundry can give rise to finished parts, already in their final shape, or not. In this case, they can undergo mechanical forming processes:

  • dimensional adjustments
  • welding or machining

But, in general, castings go through finishing processes such as:

  • Grooving
  • Machining
  • and deburring

When necessary, the parts can also undergo heat treatment. It is to provide greater resistance since the 스테인리스 스틸 로스트 왁스 주조 have less mechanical resistance.

How to transform the wax model into metal through lost wax casting?

Wax modeling is a jewelry technique to create shapes by sculpting the material. The result is a piece of wax. Moreover, it must be turned into metal by casting with lost wax.

Do we know this process?

The first step is the handmade production of the model in silver or wax. Therefore, we have two different starting points. It depends on the material in which the prototype was made.

왁스 조각을 금속으로 변형하기 위해 모델을 왁스로 만든 막대에 부착합니다. 그것은 또한 "나무"를 형성합니다. 공정에 시간과 에너지가 소요되기 때문에 일반적으로 스테인리스 스틸 로스트 왁스 주조 는 동일한 구조의 여러 부품으로 완성됩니다.

또한 이러한 모델도 다를 수 있습니다. 구조의 최종 형성은 나무와 비슷합니다. 이 "나무"는 금속 원통 내부에 배치됩니다. 그리고 황산 칼슘 코팅이 부어집니다.

스테인리스 스틸 로스트 왁스 주조 공정을위한 왁스 트리

코팅이 단단해지면 실린더가 열을 받아 왁스를 제거합니다. 이것은 추방되어 미래 조각의 부정적인 형태로 빈 공간을 남깁니다.
stainless steel lost wax casting SUPPLIERS

The metal is injected by centripetal force via 스테인리스 스틸 로스트 왁스 주조. It occupies the empty space left by the wax. After the metal has hardened, the coating is removed with cold water jets. The metal parts are removed from the “tree” with special pliers and go for assembly and finishing.

Serial reproduction

It is necessary to make copies of this piece or if the model is made of metal. The process begins by removing a rubber mold. This special rubber covers the pilot piece and is vulcanized. After heating, the rubber acquires a firm consistency.

Then, the rubber is opened, the pilot piece is removed. And, as a result, we have the negative shape of the pilot piece inside the rubber.

Models and rubber

By pressure, melted wax is injected into the mold. When the wax cools, we have a copy of the metal piece, only in wax. The wax piece is removed from the rubber mold. And it is ready to be used again. We can make as many wax copies as necessary.

The wax pieces are fixed on rods by stainless steel casting. It is also made of wax, forming a “tree”. And it follows the same process described above.

Stainless steel lost wax casting Problems

Some problems can occur during lost wax casting. The reasons for these defects to occur are diverse. Some of these causes are:

  1. When a hole occurs: poor quality wax or coating, overheated metal
  2. External balls occur: weak vacuum, lack of water in the coating mixture, badly beaten plaster
  3. When streaking occurs: excess water in the coating mixture.

What is the lost wax process?

Now let's talk about the theoretical part summarized for you to understand. In this type of production, a ceramic wrap is created around a prototype. It is usually made of wax or plastic. The prototype hardens to form the removable casting mold. It is called lost wax because during the process the liquid wax leaks. Moreover, it allows the initial piece to solidify.

Stainless steel lost wax casting process is repeated several times until you have the desired number of wax pieces. They are fixed in a structure that resembles a tree. It interconnects them all in a single entrance hole. This allows the temporary wax pieces to leave and the molten metal to enter.

Then, the tree is dipped in ceramic and touched up with sand. Similarly, it increases the resistance and hardening the piece. After that, this tree is heated again so that the piece has more structure and rigidity. This creates a hollow structure and allows for no thermal shock, which would cause the structure to break.

stainless steel lost wax casting conclusion

The transformations of metals depend mainly on 스테인리스 스틸 로스트 왁스 주조. It is evident that the casting is accompanied by several processes and stages. Here the appropriate choice of each step depends on the geometry of the part, the type of alloy to cast, the number of parts to be produced and the desired surface quality.

The main foundry processes are:

  • Sand mold casting;
  • Precision casting (lost wax);
  • Casting of permanent gravity molds;
  • Pressure casting;
  • 원심 주조;
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