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1. (CN108602113) METHOD FOR PRODUCING REFRACTORY COMPOSITE PARTICLES AND FEEDER ELEMENTS FOR THE FOUNDRY INDUSTRY, CORRESPONDING FEEDER ELEMENTS AND USES

Office : China
Application Number: 201680070730.6 Application Date: 01.12.2016
Publication Number: 108602113 Publication Date: 28.09.2018
Publication Kind : A
Prior PCT appl.: Application Number:PCTEP2016079371 ; Publication Number: Click to see the data
IPC:
B22C 1/20
B PERFORMING OPERATIONS; TRANSPORTING
22
CASTING; POWDER METALLURGY
C
FOUNDRY MOULDING
1
Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
16
characterised by the use of binding agents; Mixtures of binding agents
20
of organic agents
CPC:
B22C 1/2273
B22C 1/02
B22C 1/20
B22C 9/088
B22D 7/10
Applicants: HUTTENES-ALBERTUS CHEMISCHE WERKE GESELLSCHAFT MIT BESCHRANKTER HAFTUNG
胡坦斯·阿尔伯图斯化学厂有限公司
Inventors: LEHMANN SANDRA
桑德拉·莱曼
RIEMANN KLAUS
克劳斯·里曼
ZIMMER NILS
尼尔斯·齐默尔
LIEBER HERMANN
赫尔曼·利伯
HUBERT JURGEN
于尔根·许贝特
Agents: 北京集佳知识产权代理有限公司 11227
北京集佳知识产权代理有限公司 11227
Priority Data: 102015120866.0 01.12.2015 DE
Title: (EN) METHOD FOR PRODUCING REFRACTORY COMPOSITE PARTICLES AND FEEDER ELEMENTS FOR THE FOUNDRY INDUSTRY, CORRESPONDING FEEDER ELEMENTS AND USES
(ZH) 制造用于铸造工业的耐火复合颗粒和馈料器元件的方法,相应的馈料器元件和应用
Abstract: front page image
(EN) Disclosed is a method for producing a feeder element for the foundry industry, comprising the following steps: (a) producing composite particles which have a grain size of less than 2 mm, determined by means of screening, in a matrix encapsulation method, comprising the following steps: (a1) producing drops of a suspension from at least the following start materials: (i) one or more refractory substances chosen from the group consisting of refractory solids and precursors for refractory solids, (ii) one or more density-reducing substances chosen from the group consisting of light-weight fillers which have a respective bulk density in the range of 10 to 350 g/l, blowing agents and pyrolyzable fillers, (iii) a solidifiable fluid as continuous phase; (a2) solidifying the solidifiable fluid sothat the drops harden to form hardened drops, and the refractory substance(s) and the density-reducing substance(s) are encapsulated in the hardening continuous phase; (a3) treating the hardened drops so that said composite particles result; (b) mixing the composite particles produced in step (a) with a binding agent and, optionally, further components to form a feeder mass; (c) shaping and curing of the feeder mass to form a feeder element. In addition, disclosed is the use of a matrix encapsulation method for producing composite particles and the use of sealed composite particles and a method for producing refractory composite particles and the use of same.
(ZH) 描述一种制造用于铸造工业的馈料器元件的方法,所述方法具有下述步骤:(a)以基质囊封方法制备借助筛分确定的粒度小于2mm的复合颗粒,所述基质囊封方法具有下述步骤:(a1)由至少下述起始材料制备悬浮液的液滴:(i)一种或多种耐火物质,所述耐火材料选自以下各项:耐火固体和耐火固体的前体,(ii)一种或多种降低密度的物质,所述物质选自以下各项:轻质填充剂,膨胀剂和可热解的填充剂,所述轻质填充剂具有在10g/L至350g/L的范围中的相应的堆积密度,(iii)作为连续相的可凝固的液体,(a2)使可凝固的液体的凝固,使得所述液滴硬化成已硬化的液滴,并且将一种或多种耐火物质以及一种或多种降低密度的物质囊封在凝固的连续相中,(a3)处理已硬化的液滴,使得产生复合颗粒,(b)在步骤(a)中所制备的复合颗粒或所述复合颗粒的一部分与粘合剂以及可选的其他组成部分混合成馈料器混合料,(c)使所述馈料器混合料成型并且完全硬化成馈料器元件。还描述了基质囊封方法用于制备复合颗粒的应用和经密封复合颗粒的应用以及一种用于制备耐火复合颗粒的方法和其应用。
Also published as:
IN201847023738KR1020180090313EP3383565US20180345356BR112018011078EA201891302
WO/2017/093371