Electric arc furnaces and refractory shapes therefor
    1.
    发明授权
    Electric arc furnaces and refractory shapes therefor 失效
    电弧炉和其制造的形状

    公开(公告)号:US3849586A

    公开(公告)日:1974-11-19

    申请号:US44419374

    申请日:1974-02-20

    Applicant: COMBUSTION ENG

    Inventor: JACOBS L

    CPC classification number: F27D11/08 F27B3/12 F27D1/04

    Abstract: Specially shaped refractory bricks which form openings or channels through a wall formed therefrom are used in the sidewalls of electric arc furnaces adjacent the roof for the purpose of admitting cool room temperature air to sweep across and cool the roof. Means are provided for selectively opening and closing the channels whereby roof temperatures may be controlled in localized areas as needed. The channels are formed by abutting the side faces of the bricks which each have grooves therein. The grooves and thus the channels are tapered to permit easy removal of obstructions.

    Densification of hard chrome plated surfaces
    2.
    发明授权
    Densification of hard chrome plated surfaces 失效
    硬铬表面的渗透

    公开(公告)号:US3849206A

    公开(公告)日:1974-11-19

    申请号:US32021773

    申请日:1973-01-02

    Applicant: COMBUSTION ENG

    Inventor: JACOBS L

    CPC classification number: C23C22/74

    Abstract: Porous chrome plated surfaces are densified by treating the surface with a chromic acid solution and heating the part to cure and bring about the conversion of the chromic acid to chromic oxide. The procedure may be repeated as required until the pores and cracks have been filled.

    Abstract translation: 通过用铬酸溶液处理表面并加热部分以固化并使铬酸转化为氧化铬致密化多孔镀铬表面。 可以根据需要重复该过程,直到孔和裂缝被填充。

    Insulating monolithic refractory
    3.
    发明授权
    Insulating monolithic refractory 失效
    绝缘耐火材料

    公开(公告)号:US3793042A

    公开(公告)日:1974-02-19

    申请号:US3793042D

    申请日:1970-12-24

    Applicant: COMBUSTION ENG

    CPC classification number: C04B35/6309 C04B35/14 C04B35/66 C04B2235/3427

    Abstract: An insulating, moldable monolithic refractory material for lining furnaces and the method of producing the same is disclosed. The material comprises diatomaceous earth which has been calcined for maximum volume stability, bentonite or other plastic clay materials and water. Also included may be expanded perlite for its insulating and strengthening characteristics and aluminum phosphate for its binding effect.

    Abstract translation: 公开了一种用于衬里炉的绝缘可成型的整体耐火材料及其制造方法。 该材料包括已被煅烧以获得最大体积稳定性的硅藻土,膨润土或其它塑料粘土材料和水。 还包括其膨胀珍珠岩的绝缘和强化特性以及磷酸铝的结合效果。

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