Of silica brick shape to be solved with detailed of dry mode of operation

The edge is short of to drop horny method when silica brick shapes

Silica brick

The content of waste liquid of sulphurous acid pulp adds appropriately when burden; When the feed a machine inside past model, should press edge horn pug solid, those who assure edge horn is compact; After adobe drawing of patterns, toward dry board go up before piling up, should be in dry board overlay cotton list or newspaper, the distance of 5〜10mm maintains between adobe at the same time; Vibration prevents in carriage process too big and make adobe generation is short of an edge to drop horny phenomenon.

How does adobe dimension noncombatant duty reduce when silica brick shapes?

The flatness of peen and degree of skewness should be checked before shaping, prevent peen rough or deflective; Before shaping, check even shape stage and give a brick implement flatness, make board photograph gets used to peen and upper mould; A check feet should be chased to adobe after shaping, make sure base substrate accords with requirement of dimension public errand.

The main reason that the reason silica brick that silica brick adobe produces crackle in dry process produces crackle in dry process is dry temperature had lifted fast, or be heated not all , great evaporate steam pressure has been created inside adobe, cause base substrate craze. Accordingly, the drying schedule with reasonable formulate, manage strictly, operate strictly, can reduce the phenomenon that crackle produces in dry process.

, kind what desiccator to use adobe of dry silica brick?

Adobe of dry silica brick uses channel desiccator commonly, some medium, small plants use hothouse or dry kang undertakes dry. It is OK to use channel desiccator dry all sorts of silica brick adobe. Silica brick adobe can install the Jiao Lu that machinery shapes to be pushed directly on dry car undertake inside desiccator dry, dry the leftover moisture after is controlled commonly in 1〜2% , with the large, different that handiwork shapes or vibration shapes adobe, should inside preexistence hothouse after dry 1〜3d, send desiccator to undertake again dry, its remains moisture should be controlled in 1% the following.

Firing the problem that the attention answers when silica brick

Can use under 600 ℃ faster and even warm up speed is firing. 700〜1200 ℃ because adobe bulk change is not big, intensity rises gradually, can warm up as soon as possible. The high temperature phase of 1200〜1430 ℃ , it is SiO2 brilliant model change and bulk change phase, warm up speed should be reduced gradually, answer slow and even ground warms up. For this, can use weak reductive blaze firing. Firing the following cooling phase, 600 ℃ above is OK fast cold, slow refrigeration answers under 600 ℃ .