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Composite bottom beam of high-strength truck and manufacturing method thereof

A manufacturing method and technology of composite bottom, which are applied in chemical instruments and methods, wood layered products, sugarcane machining and other directions, can solve the problems of uneven thickness, uneven thickness, uneven edges of bamboo bundles, etc., and achieve dimensional stability. The effect of good performance, high production efficiency and beautiful surface

Active Publication Date: 2020-04-21
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In recent years, more and more bamboo boards have been used, but because the bamboo curtain manufacturing process uses a splitting machine to process, this machine can only roughly cut the bamboo wall in half, the thickness is uneven, and the efficiency is low. The hot pressing process of cold in and cold out consumes time and energy
Rolled bamboo bundle curtains are used to manufacture. Due to the uneven thickness of the rolled bamboo bundle curtains, the cold-in and cold-out hot pressing process is also required, and because the edges of the two bamboo bundles are uneven, there are splicing gaps, which affects the strength and board. Beautiful, also needs improvement

Method used

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  • Composite bottom beam of high-strength truck and manufacturing method thereof
  • Composite bottom beam of high-strength truck and manufacturing method thereof
  • Composite bottom beam of high-strength truck and manufacturing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0044] Such as figure 2 As shown, a high-strength truck composite bottom beam has a structure of laying a layer of resin-impregnated paper 1 on the upper and lower surfaces from outside to inside, a layer of bamboo fiber curtain 2 impregnated with phenolic glue and dried below 70°C, and a core layer in the middle. Laminate lumber 3 with flattened bamboo sheets, followed by a layer of bamboo fiber curtain 2 impregnated with phenolic glue and dried below 70° C., and the bottom layer is a layer of resin-impregnated paper 1 .

[0045] Its manufacturing method is as follows:

[0046] 1) Production of long bundles of bamboo fiber curtains and treatment of bamboo filaments:

[0047] ① Cut the fresh moso bamboo tube with a diameter of about 90mm into 2.47m long according to the requirements, remove the inner section, keep the cylinder, stack the bamboo with a trolley, leave gaps between the bamboo, and the length of the bamboo when stacking. 12° slope, the bamboo green side faces u...

Embodiment 2

[0062] Such as Figure 4 As shown, a high-strength truck composite bottom beam has a structure of laying a layer of resin-impregnated paper 1 on the upper and lower surfaces from outside to inside, a layer of bamboo fiber curtain 2 impregnated with phenolic glue and dried below 70°C, and a core layer in the middle. Laminated veneer lumber 4 is used, followed by a layer of long bamboo fiber curtain 2 impregnated with phenolic glue and dried below 70° C., and a layer of resin impregnated paper 1 .

[0063] Its manufacturing method is as follows:

[0064] 1) Production of long bundles of bamboo fiber curtains and treatment of bamboo filaments:

[0065] ① Cut the fresh moso bamboo tube with a diameter of about 90mm into 2.48m long according to the requirements, remove the inner section, keep the cylinder, stack the bamboo with a trolley, leave gaps between the bamboo, and the length of the bamboo when stacking. 10° slope, bamboo green side up;

[0066] ②Push the trolley with ba...

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Abstract

The invention relates to a high-strength composite sill of a truck and a manufacturing method for the high-strength composite sill. According to the structure of the high-strength composite sill of the truck, the upper surface layer and the lower surface layer are both a layer of bamboo fiber curtain (2), and a core layer is on the inner sides of the upper surface layer and the lower surface layer and is one of a flattened bamboo chip laminated material for the core layer (3), laminated veneer lumber for the core layer (4) and laminated wood for the core layer. The manufacturing method comprises the processing steps of 1) manufacturing the long-bundle bamboo fiber curtains and carrying out sizing treatment; 2) preparing and manufacturing a core layer material; carrying out assembly and hot-press on a composite board; and 4) pasting impregnated paper to the side surface of the sill. The high-strength composite sill and the manufacturing method have the advantages that a large amount of bamboo and fast-growing wood can be applied to the sill of the truck, the raw material source of a base plate can be expanded, the raw material source is extensive, the surface is attractive, the size stability is good, the strength is high, the production efficiency is high, the high-strength composite sill and the manufacturing method are a sustainable cyclic economy and accord with the development tendency of the automobile industry.

Description

technical field [0001] The invention relates to a high-strength truck composite bottom beam and a manufacturing method thereof, belonging to the technical field of wood-based panel manufacturing in the wood industry. Background technique [0002] Most of the bottom plates and bottom beams of foreign truck compartments are made of tropical hardwoods (such as Abidong, etc.). Due to the long growth cycle of this type of tree species, it generally takes more than 50 years. With the excessive exploitation of the original tropical rainforest , Large-diameter clones and Abidon have experienced a shortage of raw material supply. Take Indonesia as an example. In the 1950s, the country’s forest area was 162 million hectares, but now it is only 95 million hectares, of which 70% of the original forest area has been destroyed. Especially for beams with a length of 2.2 meters and a thickness of 11 cm, it is also required that there are no knots and cracks on the beams (hardwoods are pron...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27J1/00B32B21/04B32B21/14
CPCB27J1/00B32B21/042B32B21/14
Inventor 许斌朱其孟李延军徐骏
Owner NANJING FORESTRY UNIV