US8480393(Lockheed Martin Corporation)
構成要素:
"These composite materials, which include a matrix constituent, typically a resin, and a reinforcement constituent, typically a fiber bundle or woven fabric, are formed via a molding operation."
加圧下:
"In this process, resin is added under pressure into a closed-cavity mold."
自動詞:
"Some but not all of this air is driven out through vents as the fibers fill with resin."
により、を使用して:
"For small molds, this problem is addressed using relatively inexpensive presses."
示す:
1) "FIG. 1 depicts a simplified representation of conventional, horizontally oriented, VARTM molding apparatus 100."

2) "As depicted in FIG. 1, apparatus 100 includes hard tool 102 (i.e., the mold) and soft tool 112"
実施、使用、用いる:
"soft tool 112, which is traditionally implemented as a flexible membrane, such as nylon vacuum bagging film, a sheet of silicon rubber, or similar material."
以下:
"Resin is introduced into chamber 114 to impregnate the reinforcement component, typically fibers/fabric 108 (hereinafter "fiber preform 108")"
倒置:
"Also disposed in chamber 114 are mold release (applied as a liquid or solid) film 104, peel ply 106, resin distribution medium 110, resin distribution line(s) 117, and vacuum distribution line(s) 118."
となる、構成する、提供する、:
"The peel ply and release film provide a releasing interface to make it easier to separate various layers (e.g., resin distribution medium, etc.) from the finished workpiece."
挟持:
"Fiber preform 108 is thus sandwiched between hard tool 102 and soft tool 112 in chamber 114."
真空:
1) "In operation, a vacuum is pulled in chamber 114 via vacuum line 118, thereby drawing soft tool 112 against resin distribution medium 110."
2) "in operation, a vacuum is first drawn in second chamber 226"
3) "In operation, a vacuum is established in the region between the soft tool and the hard tool."
4) "Vacuum can be drawn via gas conduit 452 or via a separate vacuum line (not depicted)."
5) "The vacuum is broken in region 444"
6) "Resin distribution medium 610 and fiber preform 508 are under vacuum."
比率:
"This is required to obtain a composite with a controlled and desired fiber volume fraction."
然るが故に:
"Typically, the lines are discarded after the workpiece is removed from the mold and new resin inlet lines and resin distribution lines are installed for each subsequent VARTM molding operation. As such, these lines are effectively single-use lines."
同様、のように:
"Like conventional VARTM, FASTRAC apparatus 200 includes hard tool 202 and soft tool 212, with fiber preform 208 sandwiched therebetween."
固定:
"The FASTRAC layer is sealed to the hard tool or other appropriate surface to create a second gas-tight chamber 226 above soft tool 212." (fasten)
すなわち、ハイフン、ダッシュ:
1) "Secondary vacuum line 228 is operable to evacuate air from this second gas-tight region. FASTRAC apparatus 200 thus includes two "vacuum bags"--one created by soft tool 212 and the second via FASTRAC layer 220."
2) "This pressure differential--atmospheric or greater pressure on the second side of the soft tool and vacuum on the first side of the soft tool results in a compaction pressure that acts on the fiber preform."
3) "To facilitate delivery of the resin to the fiber preform, a passage--the reusable resin distribution line--is formed between the soft tool and the resin distribution medium/fiber preform."
に従い、の通り:
"After channels 230 are formed, the pressure in first chamber 214 is reduced to evacuate air, as per standard VARTM processing."
wherein:
1) "This reference discloses a VARTM process wherein a flow channel is created on the top face of the fiber preform to accelerate resin flow and reduce resin injection time."
2) "When bridge 564 is in the form of a closed loop, such as in molding apparatus 500 wherein the bridge encircles hard tool 502, the bridge must be configured so that it can expand and contract in diameter/circumference."
分詞:
"This causes soft tool 312 to stretch away from the top of fiber preform 308 creating flow channel 314, as depicted in FIG. 3."(結果)
緩和策、軽減策、対策:
"Some mitigation measures are discussed, but ultimately, fiber volume fraction may, in many cases, be lower than desired."
配置、配列、構成:
"A VARTM-based molding apparatus in accordance with the illustrative embodiment of the present invention also includes an arrangement for forming a RRDL (hereinafter referred to as the "RRDL forming arrangement")."
離間:
"The RRDL forming arrangement includes two spaced-apart inflatable bladders and a material (hereinafter a "bridge") that spans the two bladders, bridging the space therebetweeen."
重なる、覆う:
"Since the bridge overlies the bladders, it moves away from the resin distribution medium/fiber preform as the bladders inflate."
作る、作製:
"That apparatus is used to fabricate non-planar composite parts; in particular, it is used to form cylindrical structures for creating long, large-diameter articles."
まず説明する:
"To provide background for the description of the illustrative embodiment of the present invention--molding apparatus 500--a description of molding apparatus 400 and its operation is first provided."
から構成される、有する、備える:
"In apparatus 400, hard tool 402 comprises a plurality of arcuate segments that collectively define a cylindrical shape."
等:
"Both the inner and outer soft tools are made of a resilient material, such as silicone rubber or the like"
近接:
"Fiber preform 408 is disposed proximal to hard tool 402 within outer molding region 442."

同様に:
"Likewise, fiber preform 408' is disposed within inner molding region 442' proximal to hard tool 402."
簡略、簡潔化のため:
"For brevity, the details of the operation are only provided with respect to outer molding region 442."
径方向外側:
"the soft tool is drawn away from hard tool 402 (i.e., drawn radially outward in molding region 442)"
計量:
"Typically, a metering-mixing pump (not depicted) that combines catalyst (for curing) and resin in correct proportion supplies the resin to the resin supply conduit."
当業者であれば:
"Those skilled in the art will know how to suitably select a resin as a function of the article that is being produced."
このようにして:
"In this manner, geometry of the workpiece being formed is controlled everywhere within the molding region."
代名詞:
"the compacting liquid is selected so that its specific gravity is as close as possible to that of the resin."
以外は、を例外として:
"Molding apparatus 500 is identical in structure to molding apparatus 400 with the exception that"
当接:
"The soft tool actually abuts the resin distribution media (not shown)/fiber preform during molding operations since a vacuum is drawn in region 546."
関わる、関連する:
"FIG. 5B, which omits the soft tool and fiber preform to better illustrate features germane to the invention, shows bridge 564"
ではあるが、にも関わらず:
"Notwithstanding the requirement to enable in-plane movement, the bridge must be rigid enough to resist or limit "out-of-plane" movement such that it does not flex towards the resin distribution media as it pulls the soft tool away therefrom."
面内:
"The discrete segments 568 are free to move in-plane with respect to one another"
面外:
"The rigidity of the individual segments resists out-of-plane movement."
実質的:
"The operation of apparatus 500 is essentially the same as that of apparatus 400, with the exception of"
流体的に:
"Inflation tubes 574 are fluidically coupled to the inflatable bladders to provide compressed gas (e.g., air, etc.) thereto."