Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preparing large-size isostatic pressing graphite product
The invention discloses a method for preparing a large-size isostatic pressing graphite product, relates to the technical field of preparation of large-size graphite products, and aims to solve the problem that the roasting time of the large-size isostatic pressing graphite product needs to be greatly prolonged in order to reduce cracking. The method comprises the following steps: crushing and grinding part of raw materials to obtain fine powder M, and crushing the other part of raw materials to obtain coarse particles N; adding modified coal pitch into the fine powder M, and kneading to obtain paste a; respectively mixing and kneading the fine powder M and the coarse particles N with modified coal pitch according to two proportions to obtain paste materials b and c; grinding the paste a into powder a; respectively grinding the paste b and the paste c into fine powder and coarse particles, and respectively mixing the fine powder and the coarse particles of the paste b and the paste c in proportion to obtain powder b and powder c; the forming and charging area is of a core-shell structure divided into an inner layer, a transition layer and an outer layer from inside to outside, the inner layer is filled with powder c, the outer layer is filled with powder a, the transition layer is filled with a mixture of the powder a and the powder b, and pressing forming is conducted; according to the method, the production cycle of the large-size graphite product can be shortened on the premise of ensuring the qualified rate.
本发明公开了一种制备大规格等静压石墨制品的方法，涉及大规格石墨制品制备技术领域，为解决大规格等静压石墨制品为了减少开裂需要大大延长焙烧时间的问题；本发明包括将部分原料破碎磨粉获得细粉M，另一部分破碎获得粗颗粒N；细粉M加入改质煤沥青混捏得糊料a；细粉M和粗颗粒N按两种比例分别与改质煤沥青混捏制得糊料b、c；糊料a磨成粉料a；糊料b和c都分别磨成细粉和粗颗粒，糊料b、c细粉和粗颗粒分别按比例混合得粉料b、c；将成型装料区从内至外分为内层、过渡层和外层的核壳结构，内层装粉料c，外层装粉料a，过渡层装粉料a和粉料b的混合料，压制成型；本发明可以在保证合格率的前提下，缩短大规格石墨制品的生产周期。
Method for preparing large-size isostatic pressing graphite product
The invention discloses a method for preparing a large-size isostatic pressing graphite product, relates to the technical field of preparation of large-size graphite products, and aims to solve the problem that the roasting time of the large-size isostatic pressing graphite product needs to be greatly prolonged in order to reduce cracking. The method comprises the following steps: crushing and grinding part of raw materials to obtain fine powder M, and crushing the other part of raw materials to obtain coarse particles N; adding modified coal pitch into the fine powder M, and kneading to obtain paste a; respectively mixing and kneading the fine powder M and the coarse particles N with modified coal pitch according to two proportions to obtain paste materials b and c; grinding the paste a into powder a; respectively grinding the paste b and the paste c into fine powder and coarse particles, and respectively mixing the fine powder and the coarse particles of the paste b and the paste c in proportion to obtain powder b and powder c; the forming and charging area is of a core-shell structure divided into an inner layer, a transition layer and an outer layer from inside to outside, the inner layer is filled with powder c, the outer layer is filled with powder a, the transition layer is filled with a mixture of the powder a and the powder b, and pressing forming is conducted; according to the method, the production cycle of the large-size graphite product can be shortened on the premise of ensuring the qualified rate.
本发明公开了一种制备大规格等静压石墨制品的方法，涉及大规格石墨制品制备技术领域，为解决大规格等静压石墨制品为了减少开裂需要大大延长焙烧时间的问题；本发明包括将部分原料破碎磨粉获得细粉M，另一部分破碎获得粗颗粒N；细粉M加入改质煤沥青混捏得糊料a；细粉M和粗颗粒N按两种比例分别与改质煤沥青混捏制得糊料b、c；糊料a磨成粉料a；糊料b和c都分别磨成细粉和粗颗粒，糊料b、c细粉和粗颗粒分别按比例混合得粉料b、c；将成型装料区从内至外分为内层、过渡层和外层的核壳结构，内层装粉料c，外层装粉料a，过渡层装粉料a和粉料b的混合料，压制成型；本发明可以在保证合格率的前提下，缩短大规格石墨制品的生产周期。
Method for preparing large-size isostatic pressing graphite product
一种制备大规格等静压石墨制品的方法
LI XIAOXIANG (Autor:in) / PEI XIAODONG (Autor:in) / WANG WEI (Autor:in) / LI TAO (Autor:in) / DAI ZIJIAO (Autor:in)
22.03.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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