Sanitary ceramic molds refer to molds used to produce sanitary ceramic products.
Making molds in ceramic sanitary ware manufacturing plants involves multiple steps and uses specific raw materials.
This article will explain in detail the technological process of sanitary ceramic molds.
1. Mold design
First of all, it is necessary to design molds suitable for the production of sanitary ceramic toilets according to the needs of toilet wholesalers,
including casting molds, blank molds, firing molds, etc.
The product shape, size, structure, drainage and other factors should be considered in the design to ensure that the toilet produced by the mold meets the standard.
2.Raw Materials for Making Molds:
The primary raw material for making molds in ceramic sanitary ware manufacturing is plaster of Paris (calcium sulfate hemihydrate).
Plaster of Paris is a white powder that, when mixed with water, forms a paste that hardens quickly and becomes solid.
It is commonly used in mold-making due to its ability to produce fine details and its strength when dry.
3.Process of Making Molds:
The process of making molds typically involves the following steps:
a. Mold Design:
The first step is to design the mold according to the desired shape and specifications of the ceramic sanitary ware product.
This is usually done by skilled designers or engineers using computer-aided design (CAD) software.
b. Mold Box Preparation:
A mold box is prepared to contain the plaster.
It is typically made of wood or metal and has the same shape as the desired ceramic sanitary ware product.
The mold box ensures that the plaster remains contained and takes the desired shape.
c. Mixing Plaster:
Plaster of Paris is mixed with water in a specific ratio to create a smooth and consistent paste.
The mixture is usually stirred vigorously to remove any air bubbles that may affect the mold’s quality.
d. Pouring Plaster:
The mixed plaster is poured into the mold box, covering the original ceramic sanitary ware model or pattern.
Care is taken to ensure that the plaster fills all the details and contours of the model.
e. Curing:
The plaster-filled mold box is left undisturbed for a certain period to allow the plaster to harden and cure.
The curing time varies depending on the size and complexity of the mold but generally ranges from a few hours to a day.
f. Demolding:
Once the plaster has fully cured, the mold box is opened, and the plaster mold is carefully removed.
The mold is gently tapped or vibrated to release the ceramic sanitary ware model, leaving behind a negative impression of the desired product.
4.General Cycle of Mold Production:
Taking the sanitary porcelain toilet as an example, the production cycle of the mold is generally between 30-60 days,
and the production cost is also high, ranging from about US$2,800 to US$14,000.
However, high-quality molds can be used for a long time, greatly reducing production losses caused by mold problems, and reducing production costs.
At the same time, it can also improve product quality and market competitiveness, and further promote the development of ceramic sanitary ware manufacturers.
The above is the production process of sanitary porcelain molds, and each link needs very strict control to ensure the quality of the mold.
For sanitary ceramics manufacturers, it is necessary to invest a lot of time and money in mold raw materials and production to improve the quality of products and thus gain a huge market share.
