CA1045863A - Method of and assembly for monitoring the dry density of a board product - Google Patents
Method of and assembly for monitoring the dry density of a board productInfo
- Publication number
- CA1045863A CA1045863A CA279,968A CA279968A CA1045863A CA 1045863 A CA1045863 A CA 1045863A CA 279968 A CA279968 A CA 279968A CA 1045863 A CA1045863 A CA 1045863A
- Authority
- CA
- Canada
- Prior art keywords
- sheet
- product
- dry density
- moisture
- board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000012544 monitoring process Methods 0.000 title claims abstract description 25
- 230000008569 process Effects 0.000 claims abstract description 30
- 239000002002 slurry Substances 0.000 claims abstract description 23
- 238000005259 measurement Methods 0.000 claims abstract description 11
- 238000000151 deposition Methods 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 239000000047 product Substances 0.000 description 36
- 238000009413 insulation Methods 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000012937 correction Methods 0.000 description 5
- 239000011490 mineral wool Substances 0.000 description 5
- 239000010451 perlite Substances 0.000 description 5
- 235000019362 perlite Nutrition 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000007795 chemical reaction product Substances 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000001143 conditioned effect Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G9/00—Other accessories for paper-making machines
- D21G9/0009—Paper-making control systems
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
Landscapes
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Immunology (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Pathology (AREA)
- Paper (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Building Environments (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/731,381 US4037462A (en) | 1976-10-12 | 1976-10-12 | Method of and assembly for monitoring the dry density of a board product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1045863A true CA1045863A (en) | 1979-01-09 |
Family
ID=24939255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA279,968A Expired CA1045863A (en) | 1976-10-12 | 1977-06-07 | Method of and assembly for monitoring the dry density of a board product |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4037462A (cg-RX-API-DMAC7.html) |
| CA (1) | CA1045863A (cg-RX-API-DMAC7.html) |
| DE (1) | DE2745463C3 (cg-RX-API-DMAC7.html) |
| FR (1) | FR2368030A1 (cg-RX-API-DMAC7.html) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3148800C2 (de) * | 1981-12-09 | 1986-12-04 | Grecon Greten Gmbh & Co Kg, 3220 Alfeld | Verfahren und Vorrichtung zur Ermittlung und Korrektur von Schwankungen des Flächengewichts von losen lignozellulose- und/oder zellulosehaltigen Holzspanteilchen, Fasern oder dergleichen |
| CA1236813A (en) * | 1984-04-16 | 1988-05-17 | Wolfgang Heller | Method of and apparatus for obtaining a predeterminable distribution of weight in the transverse direction of a pre-mat and/or mat |
| DE3907617C1 (en) * | 1989-03-09 | 1990-08-09 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung Ev, 8000 Muenchen, De | Method for determining the density of laminar wooden materials |
| US7151380B2 (en) * | 2004-08-06 | 2006-12-19 | Voith Paper Patent Gmbh | Microwave water weight sensor and process |
| PL424579A1 (pl) * | 2018-02-13 | 2019-08-26 | Instytut Techniki Górniczej Komag | Urządzenie do równoczesnego ciągłego pomiaru ilości i wilgotności osiadającego pyłu |
| CN109490133B (zh) * | 2018-11-09 | 2021-01-08 | 安徽宇测线缆质检技术有限公司 | 一种电缆含水量检测装置 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB920218A (en) * | 1958-10-11 | 1963-03-06 | Mario Ballestra | Method and apparatus for the simultaneous indication of the specific gravity and humidity of powdered substances |
| US3436968A (en) * | 1965-02-11 | 1969-04-08 | Fairbanks Morse Inc | Processing control system |
-
1976
- 1976-10-12 US US05/731,381 patent/US4037462A/en not_active Expired - Lifetime
-
1977
- 1977-06-07 CA CA279,968A patent/CA1045863A/en not_active Expired
- 1977-10-08 DE DE2745463A patent/DE2745463C3/de not_active Expired
- 1977-10-10 FR FR7730402A patent/FR2368030A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| US4037462A (en) | 1977-07-26 |
| DE2745463B2 (de) | 1980-12-18 |
| FR2368030A1 (fr) | 1978-05-12 |
| DE2745463C3 (de) | 1981-09-24 |
| FR2368030B1 (cg-RX-API-DMAC7.html) | 1981-11-20 |
| DE2745463A1 (de) | 1978-05-24 |
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