Porous ceramic preform and preparation method thereof, and hammer head and preparation method thereof

• Main Authors: ZHANG HAIFENG, LIU SHAOHUA, FU CHAO, REN ZHIHENG, ZHU KAI
• Format: Patent
• Language: Chinese; English
• Published: 15.04.2022
• Subjects: ARTIFICIAL STONE; CASTING; CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; CRUSHING, PULVERISING, OR DISINTEGRATING; CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; LIME, MAGNESIA; METALLURGY; MILLING GRAIN; PERFORMING OPERATIONS; POWDER METALLURGY; PREPARATORY TREATMENT OF GRAIN FOR MILLING; REFRACTORIES; SLAG; TRANSPORTING; TREATMENT OF NATURAL STONE

The invention provides a porous ceramic preform and a preparation method thereof, and a hammerhead and a preparation method thereof, and relates to the field of wear-resistant materials. The preparation method of the porous ceramic preform comprises the following steps: putting a mixture into a foam mold, preserving heat at 80-100 DEG C for 0.5-2 hours, heating to 115-125 DEG C, preserving heat for 0.5-2 hours, heating to 145-155 DEG C, and preserving heat for 0.5-2 hours to obtain the porous ceramic preform. The mixture is obtained by mixing ceramic particles, an inorganic adhesive and paraffin according to the weight ratio of 100: (6-7): (5-10). The porous ceramic prefabricated body which can be pre-embedded in the metal hammer head body to improve the wear resistance of the metal hammer head body is obtained through material improvement, and the porous ceramic prefabricated body has better porosity, so that molten metal can be immersed into pores after pre-embedding, and the interface connection stability