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4 results about "Tapered beam" patented technology

Supporting beam structure for ship and ship

PendingCN120382961AHull framesMarine engineeringTapered beam
The invention discloses a supporting beam structure for a ship and the ship. The supporting beam structure for the ship comprises a gradual change beam web plate, a gradual change beam panel, a girder web plate, a girder panel, a small beam web plate, a small beam panel and small beam panel reinforcing ribs. The bottom of the gradient beam web plate extends downwards in a step shape; the top of the gradual change beam web vertically abuts against the first mother plate. The gradient beam panel is connected with the bottom of the gradient beam web; the girder web is vertically connected to the gradient beam web, and the widest part of the gradient beam web is flush with the girder web; the bottom of the girder web is aligned and connected with the second mother plate; the top of the girder web is connected with the third mother board in an aligned mode, and the third mother board is perpendicular to the first mother board. The girder panel is connected with the bottom of the girder web; the small beam web is vertically connected to the side, opposite to the gradient beam web, of the girder web, and the top face of the small beam web is flush with the top face of the girder web; the small beam panel is connected with the small beam web; the small beam panel reinforcing rib is connected between the small beam panel and the girder web.
Supporting beam structure for ship and ship
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Owner:GUANGZHOU SHIPYARD INTERNATIONAL LTD

A translation-rotation collaborative regulation crystal axis cone tunable multi-wavelength hollow laser

PendingCN122456283ALaser arrayPlane mirror
The present application relates to the field of laser technology, in particular to a kind of tunable multi-wavelength hollow laser based on translation-rotation collaborative regulation crystal axicon, the pump beam emitted by fiber-coupled semiconductor laser array is collimated by first convex lens, focused by second convex lens, and focused to laser gain medium by plano-concave mirror;Plano-concave mirror and plane mirror form laser resonator, and negative glass axicon diverges parallel light beam in laser resonator into conical light beam, and emits parallelly after the refraction of positive glass axicon;Through the collaborative regulation of synchronous rotation first crystal axicon / second crystal axicon and moving second crystal axicon, the loss of each laser wavelength in laser resonator is dynamically adjusted, so that the oscillation threshold of multiple wavelength lasers in laser resonator is equal, and then the simultaneous stable operation of multi-wavelength laser is ensured.The present application not only can efficiently realize the synchronous output of multi-wavelength hollow laser, but also can provide flexible dynamic tuning capability between multiple wavelengths for device.
A translation-rotation collaborative regulation crystal axis cone tunable multi-wavelength hollow laser
A translation-rotation collaborative regulation crystal axis cone tunable multi-wavelength hollow laser
A translation-rotation collaborative regulation crystal axis cone tunable multi-wavelength hollow laser
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Owner:YUNNAN UNIV

Welding device for nuclear fuel cladding tube and end plug

PendingCN121624709ANuclear energy generationWelding/cutting auxillary devicesLight beamTapered beam
The invention discloses a welding device for a nuclear fuel cladding tube and an end plug, the welding device comprises a reflecting part and an emitting part, the reflecting part is provided with an annular reflecting surface capable of reflecting light beams, and the annular reflecting surface is arranged around an annular welding seam in the circumferential direction; in the axial direction corresponding to the circumferential direction, the emitting part is located on one side of the reflecting part; the emitting part can emit conical light beams, and the conical light beams are reflected by the annular reflecting face and then irradiate all the positions, arranged in the circumferential direction, of the annular weld joint at the same time. According to the invention, the conical light beams are emitted along the same conical surface, and after being reflected by the annular reflecting surface, the conical light beams can cover the annular welding seam along 360 degrees, so that all the positions of the welding seam along the circumferential direction are irradiated and heated at the same time and welding is realized, and therefore, all the positions of the welding seam along the circumferential direction are heated more uniformly, and the sealing performance of the welding seam is stronger.
Welding device for nuclear fuel cladding tube and end plug
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Owner:CHINA NUCLEAR POWER TECH RES INST CO LTD

A laser additive manufacturing device with internal coaxially-fed wire

ActiveCN111805088BAdditive manufacturing apparatusLaser beam welding apparatusDiffraction effectLight beam
A laser additive manufacturing device with in-light coaxial wire feeding: It mainly consists of a cylinder body, a holographic optical element I, a holographic optical element II with a central through-hole, a wire feeding tube, a cooling system, a positioning and supporting element installed above the cylinder body, and a coaxial laser head part. It is characterized in that: the incident laser beam forms two beams separated from each other in space after being diffracted by the holographic optical element I and is diffracted onto the surface of the holographic optical element II. After being diffracted by the holographic optical element II again, a conical beam with a hollow lightless area is formed. The wire feeding tube is inserted into this lightless area from the through-hole of the holographic optical element II, so as to achieve the complete coaxiality of the beam, the wire material and the shielding gas and perpendicularity to the additive manufacturing surface. The present invention utilizes the diffraction effect of two holographic optical elements on the laser beam, realizes in-light coaxial wire feeding, improves the forming quality and efficiency, reduces the structural complexity, ensures the isotropy of laser wire feeding forming, and the overall system is easy to control, thus improving the energy utilization rate.
A laser additive manufacturing device with internal coaxially-fed wire
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Owner:SHANDONG JIANZHU UNIV