MOLDING LIQUID, MOLDING KIT, AND METHOD FOR MANUFACTURING MOLDING ARTICLE

• Main Authors: TAKIMOTO KOJI, KAI TOMOKI, ARAO TAKESHI, NAGATOMO YUJI, OKADA NORIAKI, SATO SHINICHIRO, TAKAGI YUKI, ITO YOICHI, MATSUMURA TAKASHI, AKIEDA TOMOMI, SHIBA KEISUKE, SHINGAI YUKI
• Format: Patent
• Language: Chinese; English
• Published: 07.07.2023
• Subjects: CASTING; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; PERFORMING OPERATIONS; POWDER METALLURGY; TRANSPORTING; WORKING METALLIC POWDER

The invention relates to a molding liquid, a molding kit, and a method for manufacturing a molded article. The purpose of the present invention is to provide a molding liquid with which a molded article having excellent dimensional accuracy can be obtained. The molding liquid according to the present invention is added to a powder layer containing inorganic particles, the powder contact angle [theta] with the inorganic particles being 50 DEG or more, and the following formula is satisfied: [gamma] cos [theta]/[eta] < = 1.5 (m/s). In the formula, theta represents the powder contact angle (degree) between the molding liquid and the inorganic particles, gamma represents the surface tension (mN/m) of the molding liquid at 23 DEG C, and eta represents the viscosity (mPa.s) of the molding liquid at 25 DEG C. 本发明涉及造型液、造型套件及造型物的制造方法。本发明的目的在于，提供一种可以获得尺寸精度优异的造型物的造型液。本发明的造型液是一种对含有无机颗粒的粉体层添加的造型液，其中，与无机颗粒的粉体接触角θ为50°以上，且满足下式：γcosθ/η≤1.5(m/s)。在上式中，θ表示造型液与无机颗粒的粉体接触角(°)，γ表示造型液在23℃时的表面张力(mN/m)，η表示造型液在25℃时的粘度(mPa·s)。