Method for manufacturing retainer pipe blank with fusible polyimide molding powder as base material

A method for manufacturing retainer pipe blank with fusible polyimide molding power as base material comprises the following steps: firstly, drying fusible polyimide molding powder and aquadag under the vacuum condition; secondly, preparing a fusible polyimide molding powder composite material accor...

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Bibliographische Detailangaben
Hauptverfasser:	SUN XIAOBO, WANG ZIJUN, NING ZHONG, JI ENGUANG, JIA HUIFEN, WANG FENG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS MAKING GRANULES OR PREFORMS PERFORMING OPERATIONS PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	A method for manufacturing retainer pipe blank with fusible polyimide molding power as base material comprises the following steps: firstly, drying fusible polyimide molding powder and aquadag under the vacuum condition; secondly, preparing a fusible polyimide molding powder composite material according to weight percentage; thirdly, retaining the dimensions constitute of a retainer die; fourthly, preliminarily pressing the fusible polyimide molding powder material; fifthly, preliminarily sintering and secondarily pressing; and lastly, secondarily sintering and finally pressing and shaping to obtain the retainer pipe blank. The method adopting three times of pressing and two times of sintering is reasonably designed, the manufacturing period is shortened, the working efficiency is improved, the loss of the retainer die is reduced, and the manufactured retainer pipe blank has the characteristics of light weight, high tensile strength, small friction factor, abrasion resistance and the like.