公开(公告)号：US09199401B2

公开(公告)日：2015-12-01

申请号：US14620629

申请日：2015-02-12

Applicant: SNECMA

Inventor： Raoul Jaussaud ,  Marc-Emmanuel Techer ,  Denis Pingon ,  Dominique Magnaudeix

IPC: B29C45/44 ,  B29C45/36 ,  B29C70/48 ,  B29D22/00 ,  B29C33/48 ,  B29L31/00 ,  F01D11/00

CPC classification number: B29C45/36 ,  B29C33/485 ,  B29C45/44 ,  B29C45/4435 ,  B29C70/48 ,  B29D22/00 ,  B29L2031/7504 ,  B29L2031/757 ,  F01D5/282 ,  F01D11/008 ,  F05D2220/36

Abstract: The invention provides an injection mold core (100) for making a composite material part having a closed box, the core being in the shape of a wedge that is to be inserted inside a closed box (12) of at least one fiber preform into which a matrix-precursor fluid is to be injected, the core presenting both an opening right section (106) through which the core is to be unmolded from the box of the preform after the matrix has set, and also a maximum right section (108) of greater size than the opening right section, the core comprising at least three distinct elements (110, 112, 114) that are assembled together, each core element presenting a maximum right section of size that is smaller than the opening section.

Abstract translation: 本发明提供了一种用于制造具有封闭箱体的复合材料部件的注射模芯（100），所述芯体为楔形的形状，该楔形件将被插入到至少一个纤维预制件的封闭箱体（12）内， 要注入基质前体流体，芯体在矩阵设置之后呈现出开口右部分（106），核心将通过该开口右部分从预制件的箱子中被模制，以及最大右侧部分（108） 所述芯部包括组装在一起的至少三个不同的元件（110,112,114），每个芯元件具有小于所述开口部分的尺寸的最大正确部分。

公开(公告)号：US10987881B2

公开(公告)日：2021-04-27

申请号：US14880006

申请日：2015-10-09

Applicant: SNECMA

Inventor： Nicolas Ashtari ,  Marc-Emmanuel Techer

IPC: B29C70/54 ,  B29C70/48 ,  B29K101/10 ,  B29K105/08 ,  B29K307/04 ,  B29L31/08 ,  B29C70/24

Abstract: A method for manufacturing a turbine-engine blade from a preform made from polymerized composite material in a mold comprising a bottom part and a top part, comprising at least one closure step during which the top part of said mold is attached to the bottom part of the mold containing the preform, wherein it comprises, prior to said closure step, at least one insertion substep during which a first end of an immobilization element is inserted in a bottom part of the preform in a substantially transverse direction, and a positioning substep during which a second, opposite end of said element is disposed in a complementary reception cavity emerging in the bottom part of the mold.

公开(公告)号：US20160101575A1

公开(公告)日：2016-04-14

申请号：US14880006

申请日：2015-10-09

Applicant: SNECMA

Inventor： Nicolas Ashtari ,  Marc-Emmanuel Techer

IPC: B29C70/54 ,  B29C70/48

CPC classification number: B29C70/543 ,  B29C70/24 ,  B29C70/48 ,  B29C70/541 ,  B29C70/545 ,  B29C2793/009 ,  B29K2101/10 ,  B29K2105/0845 ,  B29K2307/04 ,  B29L2031/08 ,  B29L2031/082

Abstract: A method for manufacturing a turbine-engine blade from a preform made from polymerized composite material in a mold comprising a bottom part and a top part, comprising at least one closure step during which the top part of said mold is attached to the bottom part of the mold containing the preform, wherein it comprises, prior to said closure step, at least one insertion substep during which a first end of an immobilization element is inserted in a bottom part of the preform in a substantially transverse direction, and a positioning substep during which a second, opposite end of said element is disposed in a complementary reception cavity emerging in the bottom part of the mold.

Abstract translation: 一种用于在由包括底部和顶部的模具中的聚合复合材料制成的预成型件制造涡轮发动机叶片的方法，包括至少一个封闭步骤，在该步骤期间，所述模具的顶部附接到 所述模具包含所述预成型件，其中，在所述封闭步骤之前，所述模具包括至少一个插入子步骤，在该插入子步骤期间，固定元件的第一端在大致横向方向上插入所述预制件的底部， 所述元件的第二相对端设置在出现在模具的底部的互补的接收腔中。