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    • 3. 发明申请
    • PROCESS FOR THE HEAT TREATMENT OF PRESSED MOULDINGS
    • 压制模具加热处理工艺
    • WO2012152521A1
    • 2012-11-15
    • PCT/EP2012/056639
    • 2012-04-12
    • L'AIR LIQUIDE,SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDEAIR LIQUIDE DEUTSCHLAND G.M.B.HBRAUN-KLABUNDE, ThomasMIRSCHINKA, Jens
    • BRAUN-KLABUNDE, ThomasMIRSCHINKA, Jens
    • B22F3/10B27B9/02B27B9/04
    • B22F3/1021F27B9/028F27B9/029F27B9/045F27B9/047
    • Process for the heat treatment of at least one moulding 1, which has been pressed from at least one material powder and at least one pressing aid, in a continuous furnace 2 having an evaporation section 3 and a sintering section 4, said process comprising at least the following steps: a)the moulding 1 is introduced into the evaporation section 3, b)the moulding 1 is heated to a temperature which is suitable for the evaporation of the at least one pressing aid in the evaporation section 3, c)the moulding 1 is conveyed from the evaporation section 3 into the sintering section 4, d)the moulding 1 is heated to a temperature which lies below the melting temperature of the at least one material powder in the sintering section 4, e)at least one oxidizing gas, in particular carbon dioxide, is fed into the sintering section 4. With the teaching according to the invention, the targeted introduction of an oxidizing gas into the sintering section 4 of a continuous furnace 2 makes it possible to suppress the deposition of soot in the system and the carburization of metallic components and of the moulding 1 in the sintering section 4.
    • 至少一个已经从至少一种材料粉末和至少一种压制助剂压制的模制品1在具有蒸发部分3和烧结部分4的连续炉2中进行热处理的方法,所述方法至少包括 以下步骤:a)将模制品1引入蒸发部分3中,b)将模制品1加热到适于蒸发部分3中的至少一种按压助剂的蒸发的温度,c)成型 1从蒸发部分3输送到烧结部分4中,d)将模制件1加热到低于烧结部分4中的至少一种材料粉末的熔融温度的温度,e)至少一种氧化气体 特别是二氧化碳被输送到烧结部分4.通过根据本发明的教导,将目标将氧化气体引入连续炉2的烧结部分4中,使得可以 排除系统中烟灰的沉积以及金属部件和成型体1在烧结部分4中的渗碳。