Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of hot mold pressing mold based on nano material modification
The invention discloses a preparation method of a hot mold pressing mold based on nano material modification, and relates to the technical field of preparation of hot pressing molds. Zirconium oxide is used as a matrix, silicon nitride, silicon carbide and aluminum oxide are added as reinforcing agents, scandium oxide and lutetium oxide are used as stabilizing agents, and chromium powder, nickel powder, cobalt powder and vanadium powder are used as sintering aids. Zirconium oxide is modified by silicon nitride, silicon carbide and aluminum oxide to form an intragranular/intergranular mixed structure, and a plurality of toughening and reinforcing mechanisms have a synergistic effect, so that the mechanical property of the mold material is improved, and the thermal expansion coefficient is reduced while the mechanical strength and the wear resistance are improved; scandium oxide and lutetium oxide play roles in modifying and refining crystal grains, and chromium powder, nickel powder, cobalt powder and vanadium powder are dispersed in the crystal grains in the sintering process; by coating the reinforced wear-resistant coating material on the inner surface of the hot mold pressing mold semi-finished product, the antifriction and wear-resistant properties of the inner cavity of the hot mold pressing mold are improved, the service life of the hot mold pressing mold is prolonged, and demolding after mold pressing is facilitated.
本发明公开一种基于纳米材料改性的热模压模具制备方法，涉及热压模具制备技术领域。本发明以氧化锆为基体，添加氮化硅、碳化硅、氧化铝作为增强剂，以氧化钪、氧化镥作为稳定剂，以铬粉、镍粉、钴粉和钒粉作为烧结助剂；氮化硅、碳化硅、氧化铝对氧化锆改性形成晶内/晶间混合型结构，多种增韧补强机理协同作用，改善模具材料的力学性能，增加机械强度、耐磨性能的同时减小热膨胀系数；氧化钪、氧化镥起到变质和细化晶粒的作用，铬粉、镍粉、钴粉和钒粉在烧结的过程中分散于晶粒中；通过在热模压模具半成品的内表面涂覆增强耐磨涂层料，提高热模压模具内腔的减摩耐磨性能，延长热模压模具的使用寿命，方便模压后的脱模。
Preparation method of hot mold pressing mold based on nano material modification
The invention discloses a preparation method of a hot mold pressing mold based on nano material modification, and relates to the technical field of preparation of hot pressing molds. Zirconium oxide is used as a matrix, silicon nitride, silicon carbide and aluminum oxide are added as reinforcing agents, scandium oxide and lutetium oxide are used as stabilizing agents, and chromium powder, nickel powder, cobalt powder and vanadium powder are used as sintering aids. Zirconium oxide is modified by silicon nitride, silicon carbide and aluminum oxide to form an intragranular/intergranular mixed structure, and a plurality of toughening and reinforcing mechanisms have a synergistic effect, so that the mechanical property of the mold material is improved, and the thermal expansion coefficient is reduced while the mechanical strength and the wear resistance are improved; scandium oxide and lutetium oxide play roles in modifying and refining crystal grains, and chromium powder, nickel powder, cobalt powder and vanadium powder are dispersed in the crystal grains in the sintering process; by coating the reinforced wear-resistant coating material on the inner surface of the hot mold pressing mold semi-finished product, the antifriction and wear-resistant properties of the inner cavity of the hot mold pressing mold are improved, the service life of the hot mold pressing mold is prolonged, and demolding after mold pressing is facilitated.
本发明公开一种基于纳米材料改性的热模压模具制备方法，涉及热压模具制备技术领域。本发明以氧化锆为基体，添加氮化硅、碳化硅、氧化铝作为增强剂，以氧化钪、氧化镥作为稳定剂，以铬粉、镍粉、钴粉和钒粉作为烧结助剂；氮化硅、碳化硅、氧化铝对氧化锆改性形成晶内/晶间混合型结构，多种增韧补强机理协同作用，改善模具材料的力学性能，增加机械强度、耐磨性能的同时减小热膨胀系数；氧化钪、氧化镥起到变质和细化晶粒的作用，铬粉、镍粉、钴粉和钒粉在烧结的过程中分散于晶粒中；通过在热模压模具半成品的内表面涂覆增强耐磨涂层料，提高热模压模具内腔的减摩耐磨性能，延长热模压模具的使用寿命，方便模压后的脱模。
Preparation method of hot mold pressing mold based on nano material modification
基于纳米材料改性的热模压模具制备方法
SHENG DINGGAO (Autor:in) / YIN HONGMEI (Autor:in) / LYU LI (Autor:in)
15.07.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
B22F
Verarbeiten von Metallpulver
,
WORKING METALLIC POWDER
/
B05D
PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
,
Verfahren zum Aufbringen von Flüssigkeiten oder von anderen fließfähigen Stoffen auf Oberflächen allgemein
/
C04B
Kalk
,
LIME
/
C22C
Legierungen
,
ALLOYS
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