公开(公告)号：WO2014037681A3

公开(公告)日：2014-11-13

申请号：PCT/FR2013052077

申请日：2013-09-10

Applicant: HUETTENES ALBERTUS FRANCE

Inventor： SARRAZIN STÉPHANE ,  VARGAS MANUEL ,  LO TUNG-FAI

IPC: B22C1/22

CPC classification number: B22C1/02 ,  B22C1/2246 ,  B22C9/02 ,  B22C9/123 ,  B22D21/04 ,  C22C21/00 ,  C22C37/00 ,  C22C38/00

Abstract: The invention relates to a method for manufacturing a foundry body including the preparation of a granular mixture including a polycondensed resin having modified formaldehyde, optionally incorporating an aromatic or polyaromatic during the synthesis thereof, a hardening agent, a formaldehyde sensor compound, water and optionally at least one resin selected from the group comprising tannins, natural polyphenols, and lignins, placing said granular mixture in contact with the surface of a forming tool, and insufflating a flow of gas at 50 °C to 380 °C into the granular mixture for 1 to 300 seconds, in order to ensure at least partial hardening of said mixture. The invention also relates to a method for manufacturing a moulded foundry piece made of metal or a metal alloy, which includes pouring metal into at least one body (mould and/or core) thus produced; and to a foundry piece thus manufactured.

Abstract translation: 本发明涉及一种制造铸造体的方法，包括制备包括具有改性甲醛的缩聚树脂的颗粒混合物，任选地在其合成期间加入芳族或多芳族化合物，硬化剂，甲醛传感器化合物，水和任选地 选自包含单宁，天然多酚和木质素的组中的至少一种树脂，将所述颗粒状混合物与成形工具的表面接触，并将50℃至380℃的气体流吹入颗粒混合物中1 至300秒，以确保所述混合物的至少部分硬化。 本发明还涉及一种用于制造由金属或金属合金制成的模制铸造件的方法，该方法包括将金属倒入如此制造的至少一个体（模具和/或芯体）中; 以及如此制造的铸造件。