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Composite fibrofelt of centrifugal glass wool and fabrication method

A technology of centrifugal glass wool and fiber felt, which is applied in the direction of textiles, papermaking, non-woven fabrics, etc., can solve the problems of reduced bulk density, high production cost, and reduced strength, and achieve low production cost, large production capacity, and low equipment investment. Effect

Inactive Publication Date: 2005-01-12
严煜
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Centrifugal glass wool felt is a high-quality fire-proof, heat-insulating, and sound-absorbing material. However, due to its high production cost, many applications require manufacturers to provide low-cost products, resulting in a decrease in bulk density. As a result, Its strength is greatly reduced

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Embodiment 1: the preparation of composite centrifugal glass wool fiber felt

[0040] The glass melting furnace used is a single-chord horseshoe type regenerative glass melting furnace. Volume: 3700×7500×1400mm, with heavy oil as fuel, the raw material formula for centrifugal glass wool production is:

[0041] SiO 2 65%

[0042] al 2 o 3 7%

[0043] CaO 5%

[0044] MgO 3.5%

[0045] K 2 O+Na 2 O 15%

[0046] B 2 o 3 5%

[0047] The fiberizing machine used is a flame blowing centrifuge.

[0048] The mineral wool melting furnace used is a cupola with a diameter of 1600mm and the fuel is coke.

[0049] Raw material formula for mineral wool production:

[0050] SiO 2 42%

[0051] al 2 o 3 6.5%

[0052] CaO 34%

[0053] MgO 6%

[0054] K 2 O+Na 2 O 0.69%

[0055] Fe 2 o 3 0.20%

[0056] Acidity coefficient M K 1.21

[0057] The fiberizer used was a four-roller c...

Embodiment 2

[0070] Embodiment 2. the preparation of composite centrifugal glass wool fiber felt

[0071] The glass melting furnace used is a single-chord horseshoe type regenerative glass melting furnace. Volume: 3700×7500×1400mm, with heavy oil as fuel, the raw material formula for centrifugal glass wool production is:

[0072] SiO 2 60%

[0073] Al 2 o 3 10%

[0074] CaO 8%

[0075] MgO 3%

[0076] K 2 O+Na 2 O 13%

[0077] B 2 o 3 7%

[0078] The fiberizing machine used is a flame blowing centrifuge.

[0079] The mineral wool melting furnace used is a cupola with a diameter of 1600mm and the fuel is coke.

[0080] Raw material formula for mineral wool production:

[0081] SiO 2 36%

[0082] Al 2 o 3 7%

[0083] CaO 28%

[0084] MgO 6.8%

[0085] Fe 2 o 3 0.10%

[0086] Acidity coefficient M K 1.23

[0087] The fiberizer used was a four-roller centrifuge.

[0088] The binder used i...

Embodiment 3

[0100] Embodiment 3. the preparation of composite centrifugal glass wool fiber felt

[0101] The glass melting furnace used is a single-chord horseshoe type regenerative glass melting furnace. Volume: 3700×7500×1400mm, with heavy oil as fuel, the raw material formula for centrifugal glass wool production is:

[0102] SiO 2 65%

[0103] Al 2 o 3 7%

[0104] CaO 5%

[0105] MgO 3.5%

[0106] K 2 O+Na 2 O 15%

[0107] B 2 o 3 5%

[0108] The fiberizing machine used is a flame blowing centrifuge.

[0109] The binder used is phenolic resin with 40% solid content, add additives, add water, the ratio is 1: 1.1: 1.5 (mass ratio)

[0110] The additive formula is as follows:

[0111] Urea 400kg

[0112] Ammonium sulfate 60kg

[0113] Silane 1.2kg

[0114] Silicone oil 5kg

[0115] Mineral oil 1.0kg

[0116] Ammonia (20% content) to adjust the pH to 7.5

[0117] Fixed weight to 3 tons.

[0118] After the centrifugal glass...

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Abstract

A compound centrifugal glass cotton fiber felt is compounded by a layer of glass cotton and a layer of organic or inorganic fibers, their mass percentage is; centrifugal glass cotton 20-60%, organic or inorganic fibers 80-40%. The organic can be fibers of plants or animals such as flax, palm or wools, inorganic fibers can be ore cotton, rock cotton or glass fibers. This invention discloses its production method.

Description

1. Technical field [0001] The invention relates to a composite centrifugal glass wool fiber mat and a preparation method thereof. 2. Background technology [0002] Centrifugal glass wool felt is a high-quality fire-proof, heat-insulating, and sound-absorbing material. However, due to its high production cost, many applications require manufacturers to provide low-cost products, resulting in a decrease in bulk density. As a result, Its strength is greatly reduced. [0003] Due to some inherent characteristics, organic or inorganic fiber mats are poor in fire protection and thermal insulation performance, but they are low in cost and have a wide range of sources. 3. Contents of the invention [0004] In order to improve the strength of centrifugal glass wool felt and the curvature of organic or inorganic fiber felt, reduce the production cost of centrifugal glass wool felt, and increase the production capacity, organic or inorganic fibers are added in the production process...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/4218D04H1/587D04H1/60D04H1/64
Inventor 严煜张忠华
Owner 严煜
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