Bone China forming 12

Actual use, often several effect at the same time, a kind of additives such as adding organic matter is a surface active substance, it not only adsorption in the powder particles on the surface, but also permeates the particle pore and micro cracks, produce a great splitting stress, prompting powder can be sliding or broken under low pressure, make the density and strength of bone porcelain body is able to improve. Bone porcelain forming with additives should possess in order to give the condition of bone porcelain, various features and improve the performance of forming technology made excellent products, forming bone China with organic materials shall meet the following requirements: (1) add less effective, cheap and no reaction (2) and block (3) in oxidation, the oxidation atmosphere easy heat decomposition of volatile, and send to wide temperature range, the volatile speed slowly, in order to prevent the bone porcelain body cracking (4) not containing Fe, Co, Cu, Cr, Ni, colored metal (5) the decomposition gas 6 can dissolve in water solvent, can melt 7) back to the slab can recycle can all volatile when the high temperature roasting, don't leave or rarely leave residual impurities, do not change the composition of bone porcelain blank or rarely, does not affect the performance of the billet pet-name ruby craft simple, the bone porcelain blank no adverse effect on the performance of bone porcelain demoulding bone porcelain demoulding was not yet dry after forming blank off bone China mould process, some defects such as deformation and cracking of bone China products have a lot of was produced in the process, the process of operation is often overlooked. According to the operator's hand and bone porcelain body contact is divided into contact and non-contact. Body contact is directly with the hand removed in mold release, such as bone porcelain teapot, bone China sugar milk cylinder shaped hollow grouting products. Non-contact is to use a tray or suction apparatus and instrument, such as the operator hand operation method of direct contact with body, such as bone China plate after rolling, can be directly to the bone China body buckle on the tray mold release, hand and bone porcelain body out of contact. Contact stripping technique demand is higher, to the operation of the operator should observe whether the body before the demoulding and bone porcelain separation model, hollow products should observe whether there is any inside & other; Wet light & throughout; Phenomenon, & other; Stand up & throughout; Case, etc. , should firstly when parting, clean gently with the palm and fingers will be blank, not local hard, lest cause product sag deformation. When solid grouting demoulding, but with the wind first touch body and bone porcelain mould parts, but air volume cannot too big, can't blown up blank. Non-contact demoulding, to smooth operation, such as bone porcelain products, try not to move again with the tray after demoulding bone porcelain production, especially in the forming process after the less manpower, less defects such as deformation. Whether it is a kind of demoulding way, forced demoulding of avoid by all means. Forced demoulding often cause deformation, defect, cracking and other defects. For some thicker hollow grouting bone China products, body has sometimes local stripper, but at the bottom and & other; Wet light & throughout; Phenomenon, the demoulding is sure to appear soft collapse now, after this can pour in the pulp, bulb with grilled or with heat blower internal blower, make it as soon as possible & at the bottom of the other; Stand up & throughout; And demoulding. Adhesive and dry drilling bone CiHu products especially bone porcelain teapot, generally to spout before adhesive bonding parts punch, punch is commonly made of copper, stainless steel, etc, require sharp mouth, connect body to smooth. To accurately, rapidly and punch punch to spin, not to collapse bone porcelain body according to the deformation. — Tangshan bone porcelain tableware wholesale to be continued. 。 。 。 。 。