The fritted glaze was melted at 1120℃,which was composed of boric acid and borax as mainflux,and the effect of chemical composition and process on glaze performance was discussed.

A series of red ceramic glaze were prepare with the addition of the negative catalyst and of the frit.

Be aimed at the defect of bubble in frit, the formation and growing of bubble nucleus, the dissolution and diffusion of the common gases, the rising and ejection of bubb1e in frit melt, and the factors that affect on them were mainly discussed in this paper.

The item is studied on the five-element-system ,which is mainly consisted by K_2O,CaO, Al_2O_3,B_2O_3 and SiO_2, through adding a few kinds of flux oxides, study them flux domino effect and their capability,find out them some change rules and forming-glaze’mechanism of R_2O-RO-Al_2O_3-B_2O_3-SiO_2 system, offer a way of study on bone-china ,which doesn’t contain lead-element.

As the substitute of the traditional vacuum arc remelting process and an advanced titanium alloy melting technology,the electron beam cold hearth melting process is widely used in the titanium melting plant in the world due to its outstanding inclusion removing ability and reducing production cost ability.