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1. (CN108698117) METHOD FOR FORMING DUST-REMOVAL HOLES FOR A TURBINE BLADE AND ASSOCIATED CERAMIC CORE

Office : China
Application Number: 201780011177.3 Application Date: 10.02.2017
Publication Number: 108698117 Publication Date: 23.10.2018
Publication Kind : A
Prior PCT appl.: Application Number:PCTFR2017050310 ; Publication Number: Click to see the data
IPC:
B22C 9/10
F01D 5/18
B PERFORMING OPERATIONS; TRANSPORTING
22
CASTING; POWDER METALLURGY
C
FOUNDRY MOULDING
9
Moulds or cores; Moulding processes
10
Cores; Manufacture or installation of cores
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
D
NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
5
Blades; Blade-carrying members; Heating, heat-insulating, cooling, or antivibration means on the blades or the members
12
Blades
14
Form or construction
18
Hollow blades; Heating, heat-insulating, or cooling means on blades
CPC:
B22C 9/10
F01D 5/187
F05D 2230/211
F05D 2260/607
Applicants: SAFRAN
赛峰集团
Inventors: ROLLINGER ADRIEN BERNARD VINCENT
阿德里安·伯纳德·文森特·罗林格
BECHELANY MIRNA
米尔娜·巴舍兰尼
Agents: 中国商标专利事务所有限公司 11234
中国商标专利事务所有限公司 11234
Priority Data: 1651134 12.02.2016 FR
Title: (EN) METHOD FOR FORMING DUST-REMOVAL HOLES FOR A TURBINE BLADE AND ASSOCIATED CERAMIC CORE
(ZH) 一种形成涡轮叶片的除尘孔的方法及相关的陶瓷芯
Abstract: front page image
(EN) The invention relates to a ceramic core (10) used for the production of a hollow turbine blade for a turbomachine, using the lost-wax foundry technique, said blade comprising calibrated dust-removal holes extending from an apex of at least one cavity (22) and opening into a channel of the blade, each of said calibrated dust-removal holes being formed in a part of the core with a sufficient pre-determined height to ensure mechanical strength, said part of the core comprising a through-opening having an axis perpendicular to a longitudinal axis of the calibrated dust-removal hole and defining, on each side of the through-opening, a core cylinder having a pre-determined diameter corresponding to the dust-removal hole to be formed and a remaining core volume that is intended to be refilled after casting, such that the calibrated dust-removal hole is obtained without being pierced and without the use of connecting rods.
(ZH) 本发明涉及一种用于使用失蜡铸造技术生产涡轮机的中空的涡轮叶片的陶瓷芯(10),所述叶片包括从至少一个腔(22)的顶点延伸并通向叶片的通道的经校准的除尘孔;每个所述经校准的除尘孔都在足以确保机械强度的预定高度的芯的一部分中形成,该芯的所述部分包括一个其轴线垂直于经校准的除尘孔的纵向轴线的通孔,在通孔的两侧限定一个具有与将要形成的除尘孔对应的确定的直径的芯圆柱体,以及限定一个在铸造后用于重新填充的剩余的芯体积,使得在不钻孔且不使用连接杆的情况下获得该经校准的除尘孔。
Also published as:
FR3047767CA3014022EP3414031BR112018016416US20190022743WO/2017/137709