Sodium silicate precision casting principle and steps

Sodium silicate is precision casting in the industry a common raw materials, is also the precision foundry enterprises in a common casting precision casting process. The following are sodium silicate precision casting industry principle and detailed steps:
Glass melting, through the die forming. General to mould manufacturing good later, glass liquid injection mould or realize advance production mold in the mold together glass particle, and even die together in the furnace in melting, with glass domain mould anastomosis after annealing forming.
1, lost wax casting method
1) with mud, making master mould 2), turn system silicone rubber die cavity and with a plaster cast 3), in the silicone rubber mold of penetration wax liquid, water quality make wax "prototype", known as "wax pattern" 4), cooling, remove wax type, finishing 5), a fireproof gypsum embedding wax type 6), heating lost wax, in high temperature resistant material, form a prototype with the shape of the 7), glass block filling mould, in kiln in heating, glass block gradually melting fusion, until completely fill the cavity will be activated after annealing 8), condensation forming
2, blown glass manufacturing process steps
1), pick material: first the length of about 1200-1500 - mm around the pipe or stainless steel tube end in the furnace heating to proper temperature, in order to stick glass, grading the dip take crucible of molten glass
2), blow bubble: will pick out the material, in the roll material plate or roll material bowl rolling into glass material group, in particular on the production from blow rod end blowing in the state of the softening in glass, make it become a hollow thick wall vesicle, then or blow it big ChengLiao bubble, or use glass itself liquidity to conformal ChengLiao bubble
3), plastic type: on rotation and air blowing, stock bubble constantly swelling, operation only use pliers, scissors, tweezers, plywood and template and special hand tools shape or use scissors to trim
4), arrangement: products should be cut after annealing in mouth, mouth drying and processing
3: light processing technology
The tool: burner, anvil, tweezers, needle, scissors, forceps
The process method: squeeze, pull, forceps, viscosity, shear, winding, curved
Steps:
1), use first burner paste softening article 2), the tool shape detail 3), in the local production always pay attention to and the overall image of the relationship, and constantly adjust, until finish 4), in the center of gravity of the adjustment on the anvil works 5), light craft work pass after annealing treatment to finish.
4: tank sinking process
Steps:
1), the glass block or flat glass according to die cutting into a certain shape. Especially in the deep cover on the die plate glass, this is to consider glass softening bending form change and leave some leeway
2), the materials will be smooth placed in grinding tool support edge
3), send into furnace of uniform heating, if products bending is bigger, die deep, can divide two complete
4), baking heating time and product size and thickness of the sheet
5) and annealing treatment
5: flowers process
Steps:
1), different color different thickness of the glass rod array into a group, cut into flake
2), then heating glory to be in harmony is an organic whole
3), will these wafer permutation and combination form a piece of so-called "flowers"
4), and pieces of flowers paste or Mosaic to the surface of the glass
5), in the form of "flowers" glass products
6: pressing process
Steps:
1), lifting glass material, interception into a certain amount in the mould
2), put down the die ring
3), falling mold core
4), fuse soft glass full of inside and outside the space between the die
5), with glass slightly cools, remove the annealing, and finally finish grinding
These are the precision foundry enterprise in casting some precision casting products process used in some very simple process producing method, precision casting industry and other casting process, of course, according to the precision casting product to judge which one to use process.