AT63857B - Process for the production of a porous material for the grinding elements of Hollander, paper pulp mills and similar grinders for the production of paper pulp, cellulose, cellulose and the like. - Google Patents
Process for the production of a porous material for the grinding elements of Hollander, paper pulp mills and similar grinders for the production of paper pulp, cellulose, cellulose and the like.Info
- Publication number
- AT63857B AT63857B AT63857DA AT63857B AT 63857 B AT63857 B AT 63857B AT 63857D A AT63857D A AT 63857DA AT 63857 B AT63857 B AT 63857B
- Authority
- AT
- Austria
- Prior art keywords
- cellulose
- production
- paper pulp
- similar
- grinders
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title description 8
- 229920001131 Pulp (paper) Polymers 0.000 title description 7
- 229920002678 cellulose Polymers 0.000 title description 6
- 239000001913 cellulose Substances 0.000 title description 6
- 238000000034 method Methods 0.000 title description 3
- 239000011148 porous material Substances 0.000 title description 3
- 238000005266 casting Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000007514 turning Methods 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Paper (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur Herstellung eines porösen Materials für die Mahlorgane von Holländern, Papierstoffmühlen und ähnlichen Mahlwerken zur Erzeugung von Papierstoff, Zellstoff,
Zellulose und dgl.
Die Benutzung von Gusseisen zur Herstellung der Mahlorgane von Holländern, Papierstoffmühlen und ähnlichen Mahlgängen ist bekannt. Es hat sich nun herausgestellt, dass solche MahlwerkzetLge eine poröse und gegebenenfalls kristallinische Struktur besitzen müssen, so dass sie einerseits sehr haltbar sind und andererseits die Fasern so viel wie möglich schonen. Das neue Verfahren zur Herstellung eines solchen Materials besteht darin, dass bei dem Guss dieser Werkzeuge schmelzbare Gegenstände, wie Drahtnetze, Drehspäne öder dgl., in der Giessform angebracht werden, so dass beim Eingiessen der Metallmasse in die Giessform in der geschmolzenen Masse eine Bewegung entsteht. Hiedurch wird eine Blasenbildung hervorgerufen, die die Masse porös macht.
Das Verfahren wird zweckmässig in der Weise ausgeführt, dass in den Formen Drehspäne oder Drahtnetze in Abständen voneinander angebracht werden, worauf die geschmolzenen Masse eingegossen wird. Da diese Masse aber die in die Form hineingelegten Gegenstände mit niedriger Temperatur berührt, entsteht in der geschmolzenen Masse Be- wiegung, die eine Blasenbildung in dem Material bewirkt, su dass das Material porös wird.
EMI1.1
mit kohlensaurem Kalzium oder Magnesium oder anderen gasahgebenden Stoffen mischt, welche auf den Drehspäuen, Drahtnetzen oder dgl. angebracht werden können.
PATENT-ANSPRÜCHE :
1. Verfahren zur Herstellung eines porösen Materials für die Mahlorgane von Holländern, Papierstoffmühlen und ahnlichen Mahlwerken zur Erzeugung von Papierstoff, Zellstoff, Zellulose und dgl., dadurch gekennzeichnet, dass Drehspäne, Drahtnetze oder dgl. in Abständen voneinander in der Giessform angebracht werden, um beim Eingiessen der
EMI1.2
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Process for the production of a porous material for the grinding organs of Holländer, paper pulp mills and similar grinders for the production of paper pulp, cellulose,
Cellulose and the like
The use of cast iron for the manufacture of the grinding elements of Hollander, paper pulp mills and similar grinding operations is known. It has now been found that such grinding tools must have a porous and possibly crystalline structure so that on the one hand they are very durable and on the other hand they protect the fibers as much as possible. The new method for producing such a material consists in the fact that during the casting of these tools fusible objects, such as wire nets, turnings or the like, are placed in the casting mold, so that when the metal mass is poured into the casting mold, a movement occurs in the molten mass . This causes the formation of bubbles, which makes the mass porous.
The method is expediently carried out in such a way that turnings or wire nets are placed in the molds at a distance from one another, after which the molten mass is poured in. However, since this mass touches the objects placed in the mold at a low temperature, there is movement in the molten mass, which causes bubbles to form in the material, making the material porous.
EMI1.1
Mixes with carbonate of calcium or magnesium or other gas-releasing substances, which can be attached to the lathes, wire nets or the like.
PATENT CLAIMS:
1. A method for producing a porous material for the grinding elements of Dutch, paper pulp mills and similar grinders for the production of paper pulp, cellulose, cellulose and the like., Characterized in that turnings, wire nets or the like. Are attached to each other in the casting mold to when pouring the
EMI1.2
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT63857T | 1912-08-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT63857B true AT63857B (en) | 1914-03-10 |
Family
ID=3585808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT63857D AT63857B (en) | 1912-08-19 | 1912-08-19 | Process for the production of a porous material for the grinding elements of Hollander, paper pulp mills and similar grinders for the production of paper pulp, cellulose, cellulose and the like. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT63857B (en) |
-
1912
- 1912-08-19 AT AT63857D patent/AT63857B/en active
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