41results about How to "Long flame retardant time" patented technology

The invention discloses a passivation magnesium desulfurizer and preparing method with rare earth oxide in the metal smelting technical domain, which comprises the following parts: 95%-97% active magnesium, 1.5%-2 % cerium oxide, 0.5%-1.5% magnesium oxide and 1%-1.5% magnesium chloride. The preparing method comprises the following steps: proceeding dry mixing for metal magnesium particle and cerium oxide and magnesium oxide powder; adding acetate, magnesium chloride and water to allocate passivation liquid; pouring the passivation liquid into metal magnesium particle with cerium oxide and magnesium oxide powder; stirring until the material is dry; cooling naturally to obtain the product.

The invention relates to a home building material, in particular to a cabinet board and a manufacturing method thereof. The cabinet board structurally and sequentially comprises a decorative paper, a moisture-proof board and a shaving board from top to bottom, wherein an aluminum alloy is used for braiding the circumference of the cabinet board, an anti-flaming low formaldehyde emission UF resin adhesive is coated between the moisture-proof board and the shaving board and the shaving board in the cabinet board is glued by the adhesive. The cabinet board provided by the invention is high in bonding strength and low in formaldehyde emission, and has flame retardant property and environmental protection; furthermore, most raw materials are residual waste materials of woods, therefore the cabinet board is low in price and low in economical cost, and belongs to the recycling of regenerative resources.

The invention discloses coating solid magnesium desulfurizer and a manufacture method thereof; the coating solid magnesium desulfurizer is made of following components in weight percentage: (1) 94 to97 percent of metal solid magnesium, 1 to 4 percent of magnesia powder, 0.1 to 1.0 percent of graphite powder, 0.5 to 1.5 percent of chloride, 0.1 to 0.5 percentof selenious acid and 0.2 to 0.6 percent of silicone grease; (2) components producing process is as follows: raw material - mix - agitation - response - adding package agent - dry -screen separation - finished product; earthy graphite powder, magnesia, chlorine salt, selenious acid and silicone grease are adopted as the composition and such producing technical solution is adopted as from raw material - mix - agitation - response - adding package agent - dry - screen separation - finished product. The method overcomes such flaws exiting in the prior coating solid magnesium desulfurizer as surface hygroscopicity and agglomeration ofthe solid magnesium, inconvenience for transportation and storage, lance sticking, jammed and splattering in the process of spraying and blowing, a plurality of used cerium oxide, expensive price, badeffect of formaldehyde on human heath and environment pollution, etc. The coating solid magnesium desulfurizer and the manufacture method are widely applied in molten iron pre-desulphurization and molten steel deepening desulphurization production in steel and iron smelting industry.