Preparing method of bamboo fiber winding composite tube

A bamboo fiber and composite pipe technology, applied in the pipeline field, can solve the problems of oil resource consumption, environmental pollution, etc., and achieve the effects of saving oil resources, high strength, and improving compactness

Inactive Publication Date: 2009-11-04
XINJIANG GUANGSHUI PIPE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the use of the above-mentioned pipeline products consumes a large amount of valuable petroleum resources and causes environmental pollution

Method used

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  • Preparing method of bamboo fiber winding composite tube
  • Preparing method of bamboo fiber winding composite tube
  • Preparing method of bamboo fiber winding composite tube

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Taking the production of a bamboo composite pipe with a diameter of 200mm as an example, the specific steps are as follows:

[0021] a) bamboo chip pretreatment:

[0022] Open the fresh moso bamboo into 5 meters long, 0.7mm thick and 10mm wide bamboo slices, soak them in 5% NaOH solution for 6 hours, rinse them with water, and after drying, arrange them in a row with 9 bamboo slices 11 in parallel. The longitudinal direction is arranged in several rows successively, and the cotton yarn mesh cloth 12 (60g / m2) coated with urea-formaldehyde resin is lined on the back 2 ), solidified by pressing at 120°C for 5 minutes to form a bamboo strip with a width of 90 mm and a thickness of 0.8 mm (see figure 2 ), forming an uninterrupted strip of bamboo strips with a length of more than 50 meters, and rolled onto a reel for use;

[0023] b) Preparation of inner lining layer 1:

[0024] A 0.029mm thick polyester film is coated on a polished steel straight pipe mold with an outer ...

Embodiment 2

[0031] Taking the production of a bamboo composite pipe with a diameter of 300mm as an example, the specific steps are as follows:

[0032] a) bamboo chip pretreatment:

[0033] Fresh moso bamboo is opened into 5 meters long, 1.3mm thick, 14mm wide bamboo chips, soaked with 8% NaOH solution at 60°C for 8 hours, rinsed with water, and dried. Arrange in parallel with 8 bamboo slices 21 into a row, arrange multiple rows successively along the longitudinal direction, sew up with sutures 22 at every 30cm distance in the longitudinal direction, and the suture stitches become perpendicular to the bamboo slices (see image 3 ). After the bamboo slices are stitched, form a continuous strip of bamboo slices with a width of 120mm, a thickness of 1.3mm, and a length of more than 50 meters, and roll it onto a roll for use;

[0034] b) Preparation of inner lining:

[0035] Coated a layer of 0.029mm thick polyester film on a polished steel straight tube mold with an outer diameter of 300m...

Embodiment 3

[0042] Taking the production of a bamboo composite pipe with a diameter of 300mm as an example, the specific steps are as follows:

[0043]a) bamboo chip pretreatment:

[0044] Cut fresh moso bamboo into 140 mm long, 1.0 mm thick, and 12 mm wide bamboo slices, soak them in 5% NaOH solution for 6 hours, rinse them with water, and dry them. Weave into the wide bamboo mat band of 110mm in the mode that bamboo sheet 31 intersects each other, and in this bamboo mat band, latitude and longitude bamboo sheet and bamboo mat band are the angle of 45 ° (see Figure 4 ). The woven bamboo mat is in the form of a continuous strip with a thickness of 2mm and a length of more than 50 meters, and rolled onto a drum for use;

[0045] b) Preparation of inner lining:

[0046] Coated a layer of 0.029mm thick polyester film on a polished steel straight tube mold with an outer diameter of 300mm, with food grade resin and polyester surface felt (30g / m 2 ) making an inner liner with a thickness o...

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Abstract

The invention discloses a preparing method of a bamboo fiber winding composite tube. The existing polyvinyl chloride tubes, polyethylene tubes, glass steel tubes and glass steel sand tubes consume a great amount of petroleum resources, and pollute environments. The invention provides the preparing method of the bamboo fiber winding composite tube. The preparing method comprises the following steps: preparing an inner liner layer; pre-treating bamboo fiber, connecting the bamboo fiber into a continuous bamboo fiber strip by a method of liner cloth adhesion or sewing or weaving, and rolling the bamboo fiber strip into a roll; preparing a reinforcing layer, installing the coiled bamboo fiber strip on a winding machine to unwind, coating resin on the bamboo fiber strip through a resin tank, winding the bamboo fiber strip on an inner liner layer of a straight tube mould more than two circles, and forming the reinforcing layer after curing; preparing an outer protective layer. The preparing method uses the winding machine to perform the machine production, so the production efficiency is high, the compactness of the bamboo fiber is enhanced, and the strength of the product is enhanced.

Description

technical field [0001] The invention relates to the field of pipes, in particular to a method for preparing bamboo fiber wound composite pipes used in agricultural irrigation, water supply and drainage projects and petrochemical anticorrosion occasions. Background technique [0002] At present, in water supply and drainage projects and petrochemical anticorrosion occasions, the pipes used are generally polyvinyl chloride pipes, polyethylene pipes, glass steel pipes, glass steel sand pipes, etc. PVC pipes and polyethylene pipes are light, smooth and corrosion-resistant, but their rigidity and strength are insufficient, and the raw materials are synthetic products of petroleum products; glass steel pipes and glass steel sand pipes have corrosion resistance, high strength, and fluid resistance. It has the advantages of small size and high rigidity, but the reinforcing material of the product is glass fiber with high energy consumption, and the resin used is completely dependent...

Claims

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Application Information

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IPC IPC(8): F16L9/12B29C70/28B27M1/08B27L5/00B29C70/30B05D7/02B05D7/24B29C70/54
Inventor 陈文强叶柃钟坚瑜朱刚
Owner XINJIANG GUANGSHUI PIPE
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