4 results about "Rubberwood" patented technology

The present application relates to the technical field of artificial feeding of small insects, in particular to rubberwood small insects rubber tree wood chip cultivation feed and artificial feeding method. The rubberwood small insect cultivation feed comprises yeast powder, weiss salt, casein, starch, sucrose, agar powder, streptomycin sulfate, wheat germ oil, anhydrous ethanol, rubber tree wood chip and deionized water. The rubberwood small insect feeding method comprises the following steps: obtaining rubberwood small insect female adults; inoculating rubberwood small insect female adults; and feeding rubberwood small insects in a climate box. The artificial feeding method of rubberwood small insects provided by the present application can obtain stable test insect sources, provide insect source guarantee for studying the biological and ecological characteristics of rubberwood small insects, and further lay a theoretical foundation for formulating rubberwood small insect prevention and control measures.

This invention belongs to the technical field of building decoration materials and relates to a digitally printed rubberwood finger-jointed core flooring. It includes a core layer, on the surface of which, from top to bottom, are a coating layer, a printing layer, a primer layer, a top layer, and a first balancing layer. Below the back of the core layer are a second balancing layer and a backing board. The core layer is made of rubberwood finger-jointed material, joined by finger-joints along the length of rubberwood strips and spliced ​​along the width. Stress grooves are provided on the surface of adjacent rubberwood strips away from the finger-joints. The width of the stress grooves is 0.5–0.6 mm, the depth is 1.0–2.0 mm, and the length is between the width of one and two rubberwood strips. The distance between two adjacent stress grooves is not less than 0.2 mm. The thickness of the printing layer is 0.01–0.1 mm. The production process is also disclosed. This invention controls structural stability through structural adjustments, making it less prone to deformation and cracking; the combination of paint coating and digital printing fully utilizes low-grade wood raw materials.

The invention belongs to the technical field of ground paving materials, and relates to an EB-cured polypropylene film veneer rubber wood core composite floor, a gluing layer is arranged between a surface decoration layer and an improved three-layer rubber wood core solid wood composite floor base body layer, the surface decoration layer is an EB-cured polypropylene film, and the rubber wood core solid wood composite floor base body layer is an EB-cured polypropylene film. The thickness of the rubber wood core solid wood composite floor base body layer is 10-18 mm, the rubber wood core solid wood composite floor base body layer sequentially comprises a base material surface layer, a base material core layer and a base material bottom layer, the base material surface layer, the base material core layer and the base material bottom layer are pressed into an integrated sandwich type structure according to criss-cross textures, and the base material core layer is a rubber lignin face finger joint integrated board. The invention further discloses a production process of the floor. The main body structure rubber wood core and the wood layers with the upper surface and the lower surface being symmetrical structures are adopted, a low-temperature high-pressure short-period hot-press forming mode is adopted in the whole, and the floor is stable in performance and structure, not prone to deformation and suitable for the geothermal environment; the base material main body adopts rubber wood core finger joint, finger joint strip-shaped small blocks can effectively avoid defect positions, and rubber wood is fully utilized.

The utility model relates to the technical field of electric welding machines, and discloses a handheld welding machine which comprises a welding machine shell. The control circuit board is arranged in the welding machine shell; the heat dissipation block is provided with a channel in the direction from the air inlet to the air outlet. The cooling fan is arranged in the welding machine shell; the locking device comprises a welding rod clamp, square bakelite, a cover head and a locking piece. The first end of the welding rod clamp is arranged in the welding shell and electrically connected with the second circuit board, the second end of the welding rod clamp extends out of the welding shell, the welding rod clamp is provided with a mounting hole used for mounting a welding rod, and the welding rod clamp is provided with a first locking hole; the square bakelite is arranged on the second end part of the welding rod clamp in a sleeving manner and is provided with a second locking hole; the cover head covers the square bakelite; the locking piece fixes the welding rod through the second locking hole and the first locking hole. The welding rod is fixed and the heat dissipation function is added by adopting a simple and convenient structure.