Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of carbon-carbon composite material for manufacturing diamond production mold and diamond production mold
The invention discloses a preparation method of a carbon-carbon composite material for manufacturing a diamond production mold and the diamond production mold, and the preparation method comprises the following steps: (a) chemically depositing a cured porous carbon preform through a light hydrocarbon component to form a light hydrocarbon component permeated carbon-containing preform, (b) impregnating the carbon-containing preform with an impregnant containing pitch and resin, (c) carbonizing the impregnated carbon-containing preform at a high temperature of 700-1500 DEG C to form a dense carbon-carbon composite material; and (d) repeating steps (a)-(c) until the dense carbon-carbon composite has a density of at least 1.85 g/cm3; and (e) impregnating the compact carbon-carbon composite material in a ceramic impregnant, and carbonizing at a high temperature of 700-1500 DEG C to obtain the carbon-carbon composite material. The mechanical property of the prepared carbon-carbon composite material cannot be reduced at a high temperature, and the carbon-carbon composite material has a relatively low expansion coefficient and cannot generate'hysteresis' when being used for a diamond production mold, so that a blasting phenomenon cannot be generated.
本申请公开了一种用于制造金刚石生产模具的碳‑炭复合材料的制备方法和金刚石生产模具，制备方法包括：（a）使经固化的多孔碳预制体经轻烃组分化学沉积，以形成轻烃组分渗透的含碳预制体，（b）使含碳预制体经含沥青和树脂的浸渍剂浸渍，（c）在700℃~1500℃高温作用下碳化经浸渍的所述含碳预制体，以形成致密碳‑碳复合材料；以及（d）重复步骤（a）‑（c）直到致密碳‑碳复合材料具有至少1.85g/cm3的密度；（e）将致密碳‑碳复合材料在陶瓷浸渍剂中浸渍，后在700℃~1500℃高温作用下进行碳化，以得到碳‑炭复合材料。制得的碳‑炭复合材料在高温下力学性能不会折减，具有较低的膨胀系数，用于金刚石生产模具不会发生“滞回”，从而不产生放炮现象。
Preparation method of carbon-carbon composite material for manufacturing diamond production mold and diamond production mold
The invention discloses a preparation method of a carbon-carbon composite material for manufacturing a diamond production mold and the diamond production mold, and the preparation method comprises the following steps: (a) chemically depositing a cured porous carbon preform through a light hydrocarbon component to form a light hydrocarbon component permeated carbon-containing preform, (b) impregnating the carbon-containing preform with an impregnant containing pitch and resin, (c) carbonizing the impregnated carbon-containing preform at a high temperature of 700-1500 DEG C to form a dense carbon-carbon composite material; and (d) repeating steps (a)-(c) until the dense carbon-carbon composite has a density of at least 1.85 g/cm3; and (e) impregnating the compact carbon-carbon composite material in a ceramic impregnant, and carbonizing at a high temperature of 700-1500 DEG C to obtain the carbon-carbon composite material. The mechanical property of the prepared carbon-carbon composite material cannot be reduced at a high temperature, and the carbon-carbon composite material has a relatively low expansion coefficient and cannot generate'hysteresis' when being used for a diamond production mold, so that a blasting phenomenon cannot be generated.
本申请公开了一种用于制造金刚石生产模具的碳‑炭复合材料的制备方法和金刚石生产模具，制备方法包括：（a）使经固化的多孔碳预制体经轻烃组分化学沉积，以形成轻烃组分渗透的含碳预制体，（b）使含碳预制体经含沥青和树脂的浸渍剂浸渍，（c）在700℃~1500℃高温作用下碳化经浸渍的所述含碳预制体，以形成致密碳‑碳复合材料；以及（d）重复步骤（a）‑（c）直到致密碳‑碳复合材料具有至少1.85g/cm3的密度；（e）将致密碳‑碳复合材料在陶瓷浸渍剂中浸渍，后在700℃~1500℃高温作用下进行碳化，以得到碳‑炭复合材料。制得的碳‑炭复合材料在高温下力学性能不会折减，具有较低的膨胀系数，用于金刚石生产模具不会发生“滞回”，从而不产生放炮现象。
Preparation method of carbon-carbon composite material for manufacturing diamond production mold and diamond production mold
用于制造金刚石生产模具的碳-炭复合材料的制备方法和金刚石生产模具
SUN YUANPING (Autor:in) / LIU JUNFENG (Autor:in) / WANG XIONG (Autor:in) / XIONG YINGCHAO (Autor:in) / LIU XIYANG (Autor:in) / ZHANG FENGLE (Autor:in) / XIN BOWEN (Autor:in)
27.06.2023
Patent
Elektronische Ressource
Chinesisch
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