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Sandwich-type composite hollow sphere and layer-by-layer cladding method for manufacturing same

A composite material and sandwich-type technology, applied in the direction of synthetic resin layered products, laminated, layered products, etc., can solve the problems of reduced work efficiency, scrapped finished products, increased scrapped rate, etc., to achieve reduced scrapped rate, high strength/ Density ratio, good wear resistance effect

Active Publication Date: 2016-09-28
TAIZHOU CBM FUTURE NEW MATERIALS S & T CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At the same time, after the traditional hollow ball manufacturing process forms a finished product, due to defects in the production process (there is no monitoring and supervision of the product in the manufacturing process), if the diameter, wall thickness, density and hydrostatic pressure of the hollow ball do not meet the expected If the set value (the parameter index provided by the customer or the actual production parameter index), the finished product will be scrapped, which will lead to a continuous increase in the scrap rate and a continuous decrease in work efficiency.

Method used

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  • Sandwich-type composite hollow sphere and layer-by-layer cladding method for manufacturing same
  • Sandwich-type composite hollow sphere and layer-by-layer cladding method for manufacturing same
  • Sandwich-type composite hollow sphere and layer-by-layer cladding method for manufacturing same

Examples

Experimental program
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Effect test

Embodiment 1

[0034] Such as figure 1 Shown: a sandwich-type hollow sphere of composite material, which sequentially includes an outermost layer 1, an intermediate layer 2 and an innermost layer 3 interconnected from outside to inside, and the intermediate layer 2 is filled with hollow glass beads 4.

[0035] The intermediate layer 2 is made of thermosetting epoxy resin.

[0036] The outermost layer 1 and the innermost layer 3 are made of thermosetting polyimide.

[0037] Both the outermost layer 1 and the innermost layer 3 are filled with reinforcements, and the reinforcements are carbon fibers.

[0038] The diameter of the hollow sphere is 2 mm, the thickness of the middle layer 2 is 0.1 mm, and the true density is 100 kg / m 3 , The hydrostatic pressure strength is 1MPa.

[0039] The true density of the hollow glass microsphere 4 is 100kg / m 3 , the hydrostatic pressure strength is 3 MPa, and the diameter is 10 microns.

[0040] The ratio of the total volume of the hollow glass microsp...

Embodiment 2

[0060] Such as figure 1 Shown: a sandwich-type hollow sphere of composite material, which sequentially includes an outermost layer 1, an intermediate layer 2 and an innermost layer 3 interconnected from outside to inside, and the intermediate layer 2 is filled with hollow glass beads 4.

[0061] The middle layer 2 is made of thermosetting polyimide.

[0062] The outermost layer 1 and the innermost layer 3 are made of thermosetting polypropylene.

[0063] The outermost layer 1 is filled with reinforcement, the innermost layer 3 is not filled with reinforcement, and the reinforcement is glass fiber.

[0064] Its diameter is 60 mm, the thickness of the middle layer 2 is 10 mm, and its true density is 800 kg / m 3 , The hydrostatic pressure strength is 80 MPa.

[0065] The true density of the hollow glass microsphere 4 is 500 kg / m 3 , the hydrostatic pressure strength is 250 MPa, and the diameter is 100 microns.

[0066] The ratio of the total volume of the hollow glass microsp...

Embodiment 3

[0085] Such as figure 1 Shown: a sandwich-type hollow sphere of composite material, which sequentially includes an outermost layer 1, an intermediate layer 2 and an innermost layer 3 interconnected from outside to inside, and the intermediate layer 2 is filled with hollow glass beads 4.

[0086] The middle layer 2 is made of thermosetting polypropylene.

[0087] The outermost layer 1 and the innermost layer 3 are made of thermosetting epoxy resin.

[0088] The innermost layer 3 is filled with reinforcement, the outermost layer 1 is not filled with reinforcement, and the reinforcement is acicular wollastonite.

[0089] Its diameter is 30 mm, the thickness of the middle layer 2 is 5 mm, and its true density is 400 kg / m 3 , The hydrostatic pressure strength is 40 MPa.

[0090] The true density of the hollow glass microspheres 4 is 200 kg / m 3 , the hydrostatic pressure strength is 100MPa, and the diameter is 40 microns.

[0091] The ratio of the total volume of the hollow gla...

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Abstract

The invention relates to the technical field of hollow spheres applied to ocean engineering (such as a drilling riser buoyancy module, a distributed buoyancy module, deep-sea mining, and an ultra-deepwater submersible buoyancy module), in particular to a sandwich-type composite hollow sphere and a layer-by-layer cladding method for manufacturing the hollow sphere. The sandwich-type composite hollow sphere sequentially comprises an outermost layer, an interlayer and an innermost layer which are mutually connected from outside to inside; the interlayer is filled with hollow glass microspheres. The sandwich-type composite hollow sphere is simple in structure and high in practicability.

Description

technical field [0001] The invention relates to the technical field of hollow balls used in marine engineering (such as drilling riser buoyancy modules, distributed buoyancy modules, deep-sea mining, ultra-deep water submersible buoyancy blocks, etc.), specifically a hollow ball made of sandwich composite materials. Background technique [0002] Although the hydrostatic pressure strength of hollow glass microsphere reinforced composite hollow spheres is high, due to the weak stiffness of the wall material (that is, low elastic modulus), it does not break under water pressure but deforms greatly. The buoyancy material filled with hollow glass beads reinforced hollow balls will also have large deformation under water pressure (volume deformation rate ≥ 1.5%), resulting in excessive buoyancy loss. [0003] Although the hollow glass microsphere reinforced composite material hollow ball has excellent performance under hydrostatic pressure, the wear resistance of its wall material...

Claims

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Application Information

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IPC IPC(8): B32B27/08B32B27/38B32B27/28B32B27/20B32B27/32B32B1/00B32B37/02
CPCB32B1/00B32B27/08B32B27/20B32B27/281B32B27/32B32B27/38B32B37/02B32B2307/554B32B2307/734
Inventor 黄辉
Owner TAIZHOU CBM FUTURE NEW MATERIALS S & T CO LTD
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