Cirmamonun camphora clone scale fast propagation seedling-breeding method

The invention discloses a clonal scale rapid seedling cultivation method for Borneol Cinnamomum camphora, which comprises the following steps; soil with the ph value ranges from 5.5 to 7.0 is chosen; land is prepared and ridges are formed; 0.5% potassium permanganate solution is used for the disinfection treatment of the soil on the surface of the ridges; annual semi lignified or 80% lignified strong and healthy branches from one year to three years old Borneol Cinnamomum camphora are chosen as cuttings; 1/3 to one robust leaf is reserved on the cutting; a horse ear shaped oblique incision is cut at the upper end; the lower end is transversely cut; the upper part of the cutting is processed by dipping quickly in 1000ppm indole butyric acid solution, then processed by 600 times to 800 times mancozeb solution, and sterilization of the cuts of branches and leaves is performed; cutting is performed vertically; after cutting, the cuttings are closely covered by an agricultural film; heat insulation ...

Method for laser butt-welding copper or aluminum and carbon steel

Efficient extracting device for natural borneol

The invention discloses a high-efficient extraction device for natural borneol, which comprises a charging basket with a plurality of ventilation holes, a distillation retort, a filler pipe, a feed liquid steam pipe and a condensation gatherer; the side face of the distillation retort is opened with a charging basket passageway and the bottom part thereof is provided with a drain outlet, a heating coil is arranged at the bottom part in the distillation retort, a guide rail is disposed above the heating coil, and the charging basket is positioned on the guide rail and can be extended out of the distillation retort from the passageway to load or unload materials; and the filler pipe extrudes into the distillation retort to add the needed water when in distillation, one end of the feed liquid steam pipe is communicated with the distillation retort from the top part of the distillation retort, and the other end thereof is communicated with a condenser from the lower end of the condenser, and ...

Ash locking -valve seal structure

The utility model provides an ash locking -valve seal structure, carries out hardening treatment through the one side to contacting with the valve seat seal ring on the valve head sealing ring for arc surface on the valve head sealing ring becomes the spherical outside surface and produces the sclerosis layer, hardening treatment, specifically be: joining in marriage merga pass pressurization spinning through arc surface and valve seat seal facial features and grinding the sclerosis back, this arc surface changes outer spherical sealed face into, convex surface promptly, and the valve head sealing ring is encircling surface to surface contact with valve seat seal. The utility model provides a sealed face of valve head and the cooperation of valve seat seal facial features adopt the guide structure centering to rectify, ensure in the use centering of valve head and disk seat, extension sealing device life.

Thick plate and narrow gap laser welding method

The invention discloses a laser welding method for a thick plate and narrow gap structure. The laser welding method specifically includes steps: adjusting the focal point of a laser to an initial position of narrow gap welding; placing a powder feeding pipe in front of the laser welding direction, keeping a certain distance between the powder feeding pipe and the welding initial position, placing a gas curtain protection cover above the welding initial position, and opening protecting gas; opening a powder feeding device and enabling the powder feeding device to spread powder at certain powder feeding speed, and simultaneously opening the laser so as to start welding, and keeping the laser welding position, the powder feeding position and the position of the gas curtain protection cover relatively unchanged in the horizontal direction; returning the laser welding position, the powder feeding position and the position of the gas curtain protection cover to the initial position after completing ...

Solder wire material of submerged-arc welding for high grade pipeline steel

A solder wire for the hidden arc welding of high-grade pipe steel contains proportionally C, Si, Mn, Ni, Mo, Cu, Ti, Ce and Fe and is prepared by electric furnace smelting method. Its advantages are high strength, low-temp toughness and resistance to H2S and corrosion for its welded seam.

Manufacturing method for deep hole bottom sealing surface laser cladding of valve body part

The invention discloses a manufacturing method for deep hole bottom sealing surface surfacing of a valve part based on a laser cladding technology. A counter bore is processed at the bottom of a deep hole of a valve body, the pore diameter and the height of the counter bore are the design dimensions of the surfacing alloy sealing surface of the valve part; valve body blank is preheated in a heat treatment furnace prior to the laser cladding; alloy powder is pre-arranged at the position of the counter bore at the bottom of the valve body after the preheating of the valve body, and the laser cladding starts after protective gas is led in the deep hole of the valve body for 2-3 minutes; a laser scanning track of the laser cladding is spiral, the laser stopping position of the laser cladding is at the non-sealing surface, and crater cracks on the sealing surface are avoided. When multilayer laser cladding is needed, a laser scanning track starting point of a front layer and a laser scanning ...

Laser-manufacturing-technology-based conformal cooling device making method

The invention discloses a laser-manufacturing-technology-based conformal cooling device making method, first, a continuous cooling passage with a preset-shape is processed on a position close to mold cavity or / and mold core surface on a mold by means of mechanical processing method, and the cooling passage is nearly parallel to the mold cavity or / and mold core surface and surrounds the mold cavity or / and mold core surface in the manner of a band; the continuous cooling passage is covered with a strip or plate-shaped metal cover plate, the metal plate is fixed on the cooling passage by laser welding technology, and a sealed channel is formed in the cooling passage; and finally, the metal plate is layer-by-layer fusion-covered with a metal by laser material increase manufacturing technology to form a finally-required mold. According to the method, conformal cooling device making can be realized, and not limited by the shape of macro parts. In addition, the method also has more simple ...

Efficient extracting device for natural borneol

The invention discloses a high-efficient extraction device for natural borneol, which comprises a charging basket with a plurality of ventilation holes, a distillation retort, a filler pipe, a feed liquid steam pipe and a condensation gatherer; the side face of the distillation retort is opened with a charging basket passageway and the bottom part thereof is provided with a drain outlet, a heating coil is arranged at the bottom part in the distillation retort, a guide rail is disposed above the heating coil, and the charging basket is positioned on the guide rail and can be extended out of the distillation retort from the passageway to load or unload materials; and the filler pipe extrudes into the distillation retort to add the needed water when in distillation, one end of the feed liquid steam pipe is communicated with the distillation retort from the top part of the distillation retort, and the other end thereof is communicated with a condenser from the lower end of the condenser, and ...

Iron-based alloy powder for high strength and toughness laser deposited coating

The invention discloses iron-based alloy powder for a high strength and toughness laser deposited coating in the technical field of alloy materials. The iron-based alloy powder comprises the following components: 0.60 to 1.00 percent of C, 0.35 to 0.70 percent of Si, 0.30 to 0.60 percent of Mn, 5.00 to 7.00 percent of Cr, 2.50 to 4.00 percent of Ni, 1.50 to 2.50 percent of Mo, 1.00 to 1.50 percent of W, 0.70 to 1.00 percent of V, 0.20 to 0.40 percent of Ti, 0.50 to 0.70 percent of B, 0.20 to 0.40 percent of Nb, 0.10 to 0.30 percent of Ce and the balance of Fe. The iron-based laser deposited alloy coating without cracks in large area can be obtained without pre-heating and post thermal treatment, the deposited alloy coating has high hardness which reaches 62 to 67HRC, and the yield strength reaches 1,700 to 2,000MPa.

Iron-based alloy powder for high strength and toughness laser deposited coating

The invention discloses iron-based alloy powder for a high strength and toughness laser deposited coating in the technical field of alloy materials. The iron-based alloy powder comprises the following components: 0.60 to 1.00 percent of C, 0.35 to 0.70 percent of Si, 0.30 to 0.60 percent of Mn, 5.00 to 7.00 percent of Cr, 2.50 to 4.00 percent of Ni, 1.50 to 2.50 percent of Mo, 1.00 to 1.50 percent of W, 0.70 to 1.00 percent of V, 0.20 to 0.40 percent of Ti, 0.50 to 0.70 percent of B, 0.20 to 0.40 percent of Nb, 0.10 to 0.30 percent of Ce and the balance of Fe. The iron-based laser deposited alloy coating without cracks in large area can be obtained without pre-heating and post thermal treatment, the deposited alloy coating has high hardness which reaches 62 to 67HRC, and the yield strength reaches 1,700 to 2,000MPa.