production process
Blanking: the most important thing in the process of pottery making, which can be completed in 1-2 hours. In order to achieve good results, you need to bring jewelry such as rings, and your nails should not be too long. Decoration: use tools to outline lines, carve hollows, etc. For ceramic works.
Burning: You don't need to do it yourself. Professional teachers will correct the details for you, and professional workers will burn it after leaving it for three to five days to dry.
Coloring: After two weeks, nearly 40 different sizes and models of green gouache pigments and brushes can be blended into thousands of colors, and lines with arbitrary thickness can be drawn.
Soft pottery originated in Europe. When German sculptors created this material in the19th century, because of its high ductility and plasticity, it fully satisfied the creative desire of human beings and quickly became popular in Europe and America. Soft pottery is deeply loved by DIY people in the craft field. Its changeable characteristics have become teaching materials to inspire creative thinking and cultivate cultural temperament.
Spray varnish: You don't need to do it yourself. Spray a layer of varnish on the work to increase the brightness and protect the pattern from being worn.
What is not bold is something more official. Bold is some personal experience of previous official steps and comments on the present situation of our laboratory.
manufacturing procedure
Mineral processing? Raw material processing? Composition? Grinding? Run? Grinding? Sieve into the pool? Old and decadent
I won't elaborate on the process of making clay and porcelain clay, because the clay used in the laboratory is ready-made, we don't need to do it ourselves, and we can't do it ourselves. Second, the modeling process
Design? Modeling (rotating mold, sculpture)
1. design: draw the design of the work according to the artistic conception or requirements.
2, modeling: according to the design pattern, the round work is rotated out of the mold with wheels; People, animals or alien works are all carved out of plastic mud.
It is necessary to sketch first, and you will have a deep understanding after practice. Sculpture requires patience, and the preservation of unfinished works requires extra care.
Molding process
Paint? The dividing line? Brake? Oil? And gypsum slurry? Gypsum slurry injection? Repair the mold? Uncover the fan? Scenery production 1, painting: brush the adjusted varnish on the finished mold to make it easy to copy the model. 2. Parting line: Draw the model block line reasonably on the drawn mold.
3. Sluice: When copying the first model, the uncovered part must be washed with mud first. 4. Oiling: Before pouring the mold, brush a layer of oil on the mold to facilitate the turnover of the mold.
5. Gypsum slurry: pour a proper amount of water into a gypsum bucket, add gypsum powder into the water in proportion, and stir into a slurry with a certain consistency.
6. Gypsum slurry injection: the stirred gypsum slurry is injected into the locked mold to be turned over.
7. Mold repair: After the gypsum slurry is solidified, the external surface of the gypsum mold should be leveled as required.
8. Expose the fan: Copy a set of models one by one according to the above steps.
9. Jacket making: The first set of models made by turning can be used to make jackets, and a large number of the same models can be copied.
At present, our laboratory is painting with a mixture of gasoline and soap, which is relatively rustic, but the effect is better. The preparation of gypsum is also mastered to some extent. Fine sand sandpaper is needed to repair the mold. Be careful. Be gentle and careful at first. If you are not careful, the gypsum will break, because when repairing the mold, the gypsum will only solidify, not harden, and it will still break with great strength.
forming process
(a), grouting molding
Clear mold? Clamping? Concentrated quantity? Over the top? Grouting? Put the pulp? Open the mold? Trim? Combination? Stamp? Fuck? Erase blank
1. mold cleaning: clean the inside and outside of the mold to avoid impurities.
2. Clamping: Fold the models one by one, leaving no gaps and binding them firmly.
3. Measure the concentration: evenly stir the slurry in the slurry tank, and measure the required concentration with a concentration meter.
4. Reel threading: Lift the slurry with proper concentration into the grouting bucket, and ensure that no impurities are mixed in the slurry through reed threading.
5. Grouting: inject the slurry into the combined model, and pay attention to frequent grouting.
6. Slurry discharge: grout for a certain period of time. When the blank reaches the required thickness, discharge the excess slurry in the model (solid grouting is not allowed).
7. Mold opening: When the blank in the model has hardened to a certain extent, open the model. Take out the blank according to the specific situation or take it out after a while.
8. Trimming: Trimming the blank with a certain hardness according to the shape requirements. Generally, round ones are cut with wheels, and figures, animals and aliens are trimmed by hand.
9. Bonding: All parts of the blank are bonded together to form a complete blank.
10. Hot stamping: the name of the kiln factory or manufacturer is printed on the foot of the repaired blank. Some even make name badges in advance, and then stick them in the blanks.
1 1. drying: drying the trimmed blank at a certain temperature.
12. Plastering: Dip the dried blank in water with a sponge and polish the surface of the blank to meet the requirements of refined blank.
These are not very specific, and it is not difficult to practice and learn. Do it with your heart, step by step, no problem
(2) blank drawing and forming
Mud dehydration? Practice mud? Knead mud? Blanking? Spinning blank? Combination? Stamp (lettering)? dry
1. Mud dehydration: Mud must be dehydrated to a certain extent to become a mud with moderate hardness.
2, mud training: practice the mud evenly, without air or with less air. There are two kinds of mud training: machine training and manual training. Vacuum mud refiner is used for machine training, and manual shovel is used to kill mud for manual training.
3. Mud kneading: Knead the practiced mud into a mud block with appropriate size.
4. Blanking: Put the mud on the wheel, and pull out various tools by hand according to the pre-design, which is the blank.
5. Spinning: Spinning the blank on the wheel into a blank with appropriate thickness and beautiful shape.
6. Bonding: Bonding accessories such as ears, feet and drum nails on the blank. Some people also decorate the blank by kneading plastic to make it more beautiful.
7. Stamping (lettering): Stamping the blank feet or other parts with the author's seal, or lettering and signature by the author.
8. Drying: drying the finished hand-painted blank at a certain temperature.
Mixing mud is the first step, so mixing mud, the water content is about 25%, and mixing mud also requires some skills and strength, so girls may be a little more difficult. A key point of blank graph is to find the center of gravity. Newcomers will practice finding the center of gravity at first. Don't aim too high at the beginning, trying to pull something out. After the center of gravity is found and stabilized, it will be much smoother. Engraving or something It depends on personal preference. Natural air drying is generally used for drying, but there is also a dryer in the laboratory, which is relatively large. You can put about 2 kilns of primary products at a time.
(3) forming a printing blank
Clear mold? Clamping? Rubbing mud strips? Print blank? Open the mold? Trim? Combination? Stamp (lettering)? dry
1. mold cleaning: clean the working surface of the mold to prevent impurities from entering the blank.
2. Clamping: Put the building block models together. In the process of printing blanks, some molds are closed first, some molds are printed while closing, some molds are closed before printing, and so on.
3. Rubbing mud strips: (Before rubbing mud strips, we have to go through two processes of mud dehydration and mud training, which are repeated with the previous manual blank drawing project, so it is omitted here. ) pat the practiced mud into mud cakes or knead it into mud strips with appropriate thickness.
4. Blank printing: put the mud cake or mud strip into the model and beat it into a blank with a certain thickness by hand.
5. Mold opening: When the blank is hardened to a certain extent, mold opening is performed.
6. Trimming: Smooth the mud line or uneven place on the surface of the blank, and rotate the sphericizer.
7. Bonding: Attachments such as ears and legs are bonded to the blank.
8. Stamping (lettering): Stamping the bottom or other parts of the blank with the seal of the author, or lettering and signature by the author.
9. Drying: put the finished blank in a place with temperature for drying.
I tried last semester, but maybe I haven't fully grasped the essentials. In the process of vegetarian cooking, there will be some problems such as bumps and bubbles. So in the end, we still use the turnover model. There are other molding methods in the molding process, such as rolling mud strips, enclosing mud boards, kneading by hand, etc., which belong to modern ceramic art creation methods.
Ordinary firing process
Check the blank? Scaffolding board? Kiln loading? Into the kiln? Kiln burning? Cooling? Yaokou
1. blank inspection: the fine blank entering the kiln shall be inspected according to the standard of fine blank, and it can only enter the kiln after it is qualified.
2. Support the shed board: adjust the height and shelf layer of the shed board according to the size of the blank, and support the shed board on the kiln car with columns.
3. Kiln loading: the qualified fine blank is packed on the supporting shed plate according to different varieties.
4. Entering the kiln: After the kiln car is installed, push it into the kiln slowly and evenly, and close the kiln door. (There are also smaller gas kilns, which can be directly installed in the kiln without a kiln car. Burn the glaze into the kiln.
5. Kiln burning: Carry out gas burning operation according to the temperature rising curve of plain burning, and cease fire when reaching the firing temperature.
6. Cooling: cold kiln is carried out according to the cooling system of plain burning to prevent the plain tire from cracking.
7. Opening the kiln: When the kiln temperature is cooled to the specified temperature, open the kiln door, pull out the kiln car and take out the fired green tire.
These are all later stories. When you want to go into the kiln for firing, there will definitely be someone to guide you all the way, so I won't write more, or let you know that sentence. Kiln burning is also a lot of knowledge. I look forward to your interested students learning more slowly.
Glazing process
Vegetarian fetus? Sheung shui? Concentrated quantity? Glaze fishing? Glazing? Fuck? Glaze? Keizu
1, check the plain tires: check the plain tires one by one and reject the unqualified ones.
2. Water supply: clean and water the qualified plain tires one by one, so that the glaze surface is closely combined with the plain tires.
3. Concentration: stir the glaze slurry in the glaze jar evenly, and measure the appropriate concentration with a concentration meter.
4. Glaze fishing: use reeds to fish out the impurities mixed into the glaze slurry of the glaze jar to ensure the quality of the glaze.
5. Glazing: Glaze by rinsing glaze, dipping glaze, etc., so that there are glazes inside and outside the plain tire.
6. Drying: the glazed glaze blank is dried at a certain temperature.
7. Glazing: In order to achieve the required glaze thickness, a layer of glaze is coated on the dried glaze blank.
8. Foot cleaning: remove excess glaze on the feet of glaze blank and other places.
Water supply is also called replenishment. Water replenishment also has a certain technical content. The water content of flat tires should be well controlled. More or less, the fire will explode. . Glazing, our laboratory has also adopted the method of over-spraying glaze, which I personally think will be more uniform and detailed.
Glazing process
Scaffolding board? Clear the shed board? Polishing? Kiln loading? Into the kiln? Kiln burning? Cooling? Yaokou
1, shed board: according to the type of glaze blank, level and stabilize the appropriate shed board frame layer.
2. Cleaning the shed board: After the shed board is supported, smooth the top of the shed board and clean the bottom.
3. Sanding: Sprinkle a thin and uniform layer of refractory powder sand on the shed board to prevent the product from sticking to the feet after burning.
4. Kiln loading: according to different varieties, put the glaze blank on a suitable shed.
5. Entering the kiln: push the kiln car filled with glaze into the kiln slowly and evenly, and close the kiln door.
6. Kiln firing: The firing operation is carried out according to the glaze firing process system of gas kiln, and the firing is stopped when the highest temperature is reached.
7, cooling: according to the glaze kiln cooling system for cold kiln.
8. Opening kiln: When the kiln temperature is cooled to the specified temperature, open the kiln door, pull out the kiln car and take out the finished product.