The mug is beautiful and unique in shape, so it is very popular with consumers. So do you know how a mug is made? The following is a brief introduction to the making process of the mug.
1. Ingredients, ball milling.
Most mug manufacturers use the factory’s ready-made ceramic body formula, which is convenient for unified management. I almost use the refined pottery blank formula, generally use the daily common porcelain formula, and better use the bone china formula. After the formula is determined, put the raw materials into the ball mill, add water and grinding aids to start ball milling, and after about 15-30 hours, the balls are discharged, sieved, and iron removed.
2. Processing of raw materials before molding
According to the different molding methods of the post-process, there are two processing methods for the raw materials: the grouting method, the raw materials can be used for molding after adjusting the specific gravity and adding additives such as water glass. For the spinning method, the raw materials should be filtered by a filter press to filter out excess water, and then refined into a mud section that meets the requirements through a mud refiner, which can be used for forming after staleness.
Forming by grouting: according to the designed shape of the mug, turn out hundreds of gypsum molds, and inject the slurry in sequence in a dry state. When the gypsum mold absorbs the moisture in the slurry to form a certain wall thickness, pour out the excess slurry and control the Molding, demoulding, drying, trimming, and forming a kiln waiting to be installed in the kiln. The disadvantage of this method is that the production efficiency is low, it depends entirely on labor, requires a large space, and is not suitable for management.
Spinning molding: Using the ready-made bowl and dish spinning molding machine of the daily porcelain factory, put a fixed amount and shape of mud into a special spinning mold, and demold it to form the cup body part of the mug, but the handle of the cup needs to be Made individually and glued after drying. The advantage of this method is that it is efficient in production and is suitable for mass production. The disadvantage is that there are restrictions on the shape, and special shapes cannot be completed.
4. Kiln-mounted bisque firing
The bisque after drying and trimming in the traditional process should be fired at a high temperature of 1200-1300 ℃ in a kiln, which is called bisque firing, which gives the green body strength and prepares for glazing. There are also a few factories that are directly glazed without bisque firing, and the process is not easy to control.
There are many glazing techniques, including dipping, brushing, swinging, and spraying. However, glazing is still people-oriented, and the operator’s experience and proficiency are important.
6. Glaze firing
The well-glazed products need to be fired at a high temperature of 1000-1200 ℃ in the kiln for the second time, which is called “glazed firing”.
7, on the “mark”, high temperature setting
No matter how complicated the “marks” are, they can all be boiled down to a kind of “glaze-on-glaze”, which is a low-temperature decorative effect glaze, which can be designed and made in advance with decals, which can be attached to the cup body, or silk can be used. The screen printing process is printed to the cup body, of course, it can also be hand-painted and spray-painted. After the mark is applied, the product should be sent to the kiln at 500-800℃ to fix it on the glaze layer of the cup body. At this point, a complete mug is completed.
The above is the production process of the mug. The production process of the mug is not so easy, so it is not easy to shape a small quilt. Hope the above introduction can help you.