Precision Casting Process

With the design and manufacture of abrasive ----- ----- ---- pressure wax repair wax tree ------- ----- group Shell (James pulp) ----- dewaxing ---- Shell baking resistance analysis --- ------ ---- cleanup casting machining ----- ------- ----- heat treatment product storage.
  As too detailed point is:
Pressure wax (shot wax wax) --- repair wax wax Unit ---- ---- Group Tree (wax module tree) --- Shell (first dip pulp, pour sand, then dip pulp, finally formwork dried) --- dewaxing (steam dewaxing) ------- Formwork Roasting - Resistance Analysis - casting (pouring molten steel in the mold shell) ---- --- shock shelling casting and casting rod mill gate singulation ---- --- First Inspection (blank check) --- Abrator ----- ----- machined polished finished Unit --- --- warehousing
  Casting production processes in general is so generally can be divided into pressure wax, Shell, casting, post processing, testing
  Pressure waxes include (pressure wax, wax repair, group tree)
--- Pressure wax machine wax produced by press molding wax
--- Repair wax on wax mold is corrected
--- Group tree will be set tree wax mold
   Shell include (hang sand, linked to pulp, dried)
After processing includes (amendments, shot blasting, sandblasting, pickling,)
Pouring include (roasting, also called resistance fight spectrum analysis, casting, shell shock, cut the gate, mill gate)
After processing includes (sand blasting, shot blasting, correction, pickling)
Inspection includes (wax inspection, initial inspection, the inspection, product inspection)
   Single and small batch production of heavy castings, hand modeling is still an important way to adapt to a variety of hand-modeling complex requirements more flexible and does not require a lot of technical equipment. You can use water glass sand, VRH law water glass sand, organic ester water glass self-hardening sand, dry clay, sand and cement self-hardening resin sand and the like; for single-piece production of heavy castings, pit modeling method using low cost, production fast. Long-term production batch or multi-box styling products styling, split box modeling method is more appropriate, although mold, sand boxes and other start investment high, but can be compensated from saving modeling time, improve product quality.
Low-pressure casting, die casting, centrifugal casting and other casting methods, equipment and tooling for the expensive, so only suitable for mass production.
   Wax injection process
   Original wax melted into a stationary barrel, at 95 ~ 98 ℃ stationary, remove the wax bubbles canning, into an incubator incubated 54 ℃ stand, wax injection technology staff in strict accordance with operating instructions and procedures operation of the production. Injection of wax pieces repaired burr inspection area evacuation test, qualified group of trees. Selection process die casting according to the requirements of the selected piece. According to process requirements set tree, tree group after completion of transfer order. System bai
Mainly responsible for the production of casting type bai. The adoption of advanced silica sol-bai processes.
    Shell Process
Hanging type bai painted several times according to the requirements of the product, depending on type bai stick hanging sand slurry after drying, dried shell drying chamber should be strictly controlled temperature and humidity. Temperature control in order to prevent the occurrence of different coefficient of thermal expansion of the wax material and type bai bai up phenomenon, and control humidity because humidity is too low, too fast drying type bai bai produce cracking, excessive humidity is too slow drying type bai impact production schedule. James slurry must be fully dried before after hanging down over sand stick hanging sand slurry, or affect the type bai strength. After drying the slurry sealing wax. When autoclave dewaxing wax off vapor pressure must be raised to more than 0.45Npa within 6 seconds. To prevent the emergence of the phenomenon of rising bai dewaxing process. Completion wax type bai turn after passing inspection order. Casting
The workshop is the core of the workshop process, responsible for casting work workpiece workshop with high-frequency electric furnace 4, roaster 4. Casting workshop process
The type bai required to appropriate temperature roasting (T≥1050 ℃), to enhanced type bai strength and permeability, melt the steel material by adding an appropriate amount of alloy material requirements, playing slag, oxygen, temperature, the sampling inspection After passing the molding material composition, after cooling transfer order. Clear up
  Cleanup Process
Casting the workpiece in the machine type vibration bai bai shaken off, the workpiece is cut from the mold head off separation. Between the gate mill feed mill parts to the extent required by customers after the transfer order. Refurbishment
The sharpened workpiece rework the gate, plastic, in order to meet customer requirements.
   Refurbishment process
Will clean the workpiece into the transfer sequence blasting machine blasting, after removal of residual type bai workpiece inspection, rework wheel through the air, shaping, welding after the inspection, rework qualified products together with the disposable quality products according to process requirements pickling, sand blasting, heat treatment, machining. After the final inspection into finished products. Machining
Workpiece according to customer requirements, the part to be machined is machined, the workshop is equipped with automatic CNC machine three, CT0642-A precision instrument machine 12, Taiwan tapping machine 4, according to customer requirements for processing needs workpiece do cutting, milling, drilling, threading, tapping and other processing.

Products

Aluminum alloy precision casting

Stainless steel castings

Stainless steel castings

Stainless steel castings