DE1043628B - Device for the continuous production of synthetic resin foam - Google Patents
Device for the continuous production of synthetic resin foamInfo
- Publication number
- DE1043628B DE1043628B DEB27115A DEB0027115A DE1043628B DE 1043628 B DE1043628 B DE 1043628B DE B27115 A DEB27115 A DE B27115A DE B0027115 A DEB0027115 A DE B0027115A DE 1043628 B DE1043628 B DE 1043628B
- Authority
- DE
- Germany
- Prior art keywords
- synthetic resin
- foam
- continuous production
- resin foam
- mixing chamber
- 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.)
- Pending
Links
- 239000006260 foam Substances 0.000 title claims description 22
- 239000000057 synthetic resin Substances 0.000 title claims description 7
- 229920003002 synthetic resin Polymers 0.000 title claims description 7
- 238000010924 continuous production Methods 0.000 title claims description 3
- 239000000243 solution Substances 0.000 claims description 7
- 239000004848 polyfunctional curative Substances 0.000 claims description 5
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 239000004088 foaming agent Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 229920001807 Urea-formaldehyde Polymers 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000011872 intimate mixture Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
- B29B7/7404—Mixing devices specially adapted for foamable substances
- B29B7/7409—Mixing devices specially adapted for foamable substances with supply of gas
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
- E04B1/7604—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only fillings for cavity walls
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Acoustics & Sound (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Nozzles (AREA)
Description
Vorrichtung zum kontinuierlichen Herstellen von Kunstharzschaum Zur Schall- und Wärmedämmung sind Schaumisolierstoffe bekannt, die aus der Verbindung einer wäßrigen Lösung eines Harnstoffharzes und eines stark schäumenden Schaummittels bestehen. Zur Herstellung dieser Schaumisolierstoffe wird das Schaummittel in einer geeigneten Einrichtung schaumig geschlagen. Dem sich hierbei entwickelnden Schaum wird dann allmählich unter weiterem Rühren die wäßrige Lösung des Harnstoffharzes zugesetzt. Hierdurch entsteht ein Kunstharzschaumstoff, der sofort zu Platten u. dgl. verformt wird und in den Formen nach sehr kurzer Zeit verfestigt. Die Verfestigung wird dabei durch die Harnstoffharzlösung bewirkt, die damit als Härtebildner arbeitet. Die auf diese Weise gebildeten Platten u. dgl. können leicht bearbeitet und so für die verschiedensten Zwecke der Schall- und Wärmedämmung benutzt werden.Device for the continuous production of synthetic resin foam Zur Sound and thermal insulation are foam insulation materials known, which are made from the compound an aqueous solution of a urea resin and a high foaming foaming agent exist. To produce these foam insulation materials, the foam compound is in a whipped to a suitable device. The foam that develops in the process the aqueous solution of the urea resin gradually becomes with further stirring added. This creates a synthetic resin foam that can immediately be converted into plates and Like. Is deformed and solidified in the molds after a very short time. The solidification is brought about by the urea resin solution, which works with it as a hardener. The plates and the like formed in this way can be easily processed and so for the most diverse purposes of sound and heat insulation are used.
Es ist bereits bekanntgeworden, diese Schaumiso lierstoffe nicht fabrikmäßig zu Platten u. dgl. zu verarbeiten, sondern sie an Ort und Stelle zu beliebigen Körpern in Hohlräumen zu verspritzen. Die deutsche Patentschrift 734094 beschreibt ein Verfahren, nach dem sowohl das Schaummittel wie auch der Härte bildner je für sich verschäumt werden, ehe sie in die Mischdüse eintreten. Nach diesem Verfahren entsteht ein Schaum, der die Spritzvorrichtung nicht kontinuierlich, sondern diskontinuierlich in Flockenform verläßt. Es ist, wenn überhaupt, nur schwer möglich, mit den so gebildeten Flocken komplizierte Formen auszufüllen, weil dazu ein gleichmäßiger Materialzufluß und ein gleichmäßiger Druck nötig sind. It has already become known that these Schaumiso lierstoffe not to be processed in the factory into plates and the like, but instead to them on the spot to inject any body in cavities. The German patent specification 734094 describes a process according to which both the foam agent and the hardness formers are each foamed before they enter the mixing nozzle. According to this procedure a foam is created which the spray device does not continuously, but discontinuously leaves in flake form. It is difficult, if at all, to do with such educated people Filling in flakes complicated shapes because of the steady flow of material and even pressure is required.
In der erfindungsgemäßen Vorrichtung wird dagegen nur das Schaummittel in einem Schaumerzeuger vofgeschäumt, ehe es mit der Härtebildnerlösung, die nicht für sich vorgeschäumt wird, sondern ungeschäumt in die Mischkammer eintritt, vermischt wird. Es entsteht hierbei ein kontinuierlich fließender Schaum, der ohne jede Schwierigkeit alle Hohlräume der Form gleichmäßig ausfüllt und selbst durch feinste Haarrisse durchtritt. In contrast, only the foaming agent is used in the device according to the invention pre-foamed in a foam generator before the hardener solution, which is not is pre-foamed for itself, but enters the mixing chamber unfoamed, mixed will. The result is a continuously flowing foam without any difficulty Fills all cavities in the mold evenly and even through the finest hairline cracks passes through.
Die Erfindung besteht aus einer Vorrichtung, bei der eine an sich bekannte, besondere, dem Schaumerzeuger nachgeordnete Mischkammer, vorgesehen ist, in deren spitzwinklig angesetzte Zuführung für die Kunstharzlösung eine Mischdüse, insbesondere eine Spiralmischdüse, eingebaut ist. Dabei wird der Härtebildner der Schaumflüssigkeit erst dann zugeführt, nachdem die Schaumflüssigkeit den Schaumerzeuger verlassen hat, und zwar möglichst unmittelbar an der Ausspritzdüse der Vorrichtung in einer dort vorgesehenen Mischkammer. The invention consists of a device in which a per se known, special mixing chamber downstream of the foam generator is provided, in its acute-angled feed for the synthetic resin solution a mixing nozzle, in particular a spiral mixing nozzle is installed. The hardness component becomes the Foam liquid is only supplied after the foam liquid has reached the foam generator has left, as close as possible to the injection nozzle of the device in a mixing chamber provided there.
Die Zeichnung zeigt ein Ausführungsbeispiel der Erfindung in schematischer Darstellung. The drawing shows an exemplary embodiment of the invention in schematic form Depiction.
Die Vorrichtung wird mit Druckluft betrieben, die beispielsweise von der Druckluftflasche 1 geliefert wird. Von der Druckluftflasche 1 führt eine Leitung 2 zum Behälter 3 mit der Härtebildnerlösung und eine Leitung 4 zum Behälter 5 mit der Schaumflüssigkeit. The device is operated with compressed air, for example is supplied by the compressed air cylinder 1. From the compressed air cylinder 1 leads a Line 2 to the container 3 with the hardener solution and a line 4 to the container 5 with the foam liquid.
Der Behälter 5 ist über eine Leitung 6 mit dem Schaumerzeuger 7 verbunden, in dem in bekannter Weise durch Einleiten von Druckluft aus der Leitung 8 die Schaumflüssigkeit stark mit Luft angereichert wird.The container 5 is connected to the foam generator 7 via a line 6, in which in a known manner by introducing compressed air from line 8, the foam liquid is heavily enriched with air.
Das auf diese Weise vorbehandelte Schaummittel wird der Abspritzdüse 9 vorgeschalteten Mischkammer 10 zugeführt. Spitzwinklig hierzu wird der Mischkammer 10 durch die Leitung 11 die Härtebildnerlösung aus dem Behälter 3 zugeleitet. Die Zuleitung erfolgt dabei mittels einer mit 12 angedeuteten Spiralmischdüse. Das in der Mischkammer 10 erzeugte innige Gemisch kann unmittelbar durch die Abspritzdüse 9 oder gegebenenfalls mittels einer an dieser angeschlossenen Spritzlanze od. dgl. abgespritzt werden. The foam concentrate pretreated in this way becomes the spray nozzle 9 upstream mixing chamber 10 supplied. The mixing chamber is at an acute angle to this 10, the hardener solution from the container 3 is fed through the line 11. the The supply line takes place by means of a spiral mixing nozzle indicated by 12. This in The intimate mixture produced in the mixing chamber 10 can be passed directly through the spray nozzle 9 or, if necessary, by means of a spray lance or the like connected to this. be hosed.
Claims (1)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL243340D NL243340A (en) | 1953-08-20 | ||
LU33069D LU33069A1 (en) | 1953-08-20 | ||
DEB27115A DE1043628B (en) | 1953-08-20 | 1953-08-20 | Device for the continuous production of synthetic resin foam |
FR1110789D FR1110789A (en) | 1953-08-20 | 1954-07-15 | Device for spraying foamy substances |
GB23553/54A GB755173A (en) | 1953-08-20 | 1954-08-13 | Device for spraying foamed materials |
US451205A US2860856A (en) | 1953-08-20 | 1954-08-20 | Installation for spraying foam materials |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE755173X | 1953-08-20 | ||
DEB27115A DE1043628B (en) | 1953-08-20 | 1953-08-20 | Device for the continuous production of synthetic resin foam |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1043628B true DE1043628B (en) | 1958-11-13 |
Family
ID=25947692
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEB27115A Pending DE1043628B (en) | 1953-08-20 | 1953-08-20 | Device for the continuous production of synthetic resin foam |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE1043628B (en) |
LU (1) | LU33069A1 (en) |
NL (1) | NL243340A (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE734094C (en) * | 1940-08-01 | 1943-04-09 | Ig Farbenindustrie Ag | Process for the production of insulating compounds |
DE800704C (en) * | 1948-10-02 | 1950-11-30 | Basf Ag | Process for the continuous production of foam masses from synthetic resins u. Like. For insulation purposes |
DE813598C (en) * | 1950-03-04 | 1951-09-13 | Basf Ag | Process for the continuous production of foam masses from resins, glues and the like. like |
DE832493C (en) * | 1949-06-09 | 1952-02-25 | Gewerkschaft Philippine | Method and device for filling molds, cavities or the like with pore-forming organic plastics |
DE883343C (en) * | 1951-08-14 | 1953-07-16 | Metallgesellschaft Ag | Process for solidifying foamy masses of organic or inorganic substances produced by the blowing process |
DE901471C (en) * | 1951-12-24 | 1954-01-11 | Bayer Ag | Process for the production of porous or homogeneous plastic semi-finished products or finished articles based on polyurethane and device for carrying out the process |
-
0
- LU LU33069D patent/LU33069A1/xx unknown
- NL NL243340D patent/NL243340A/xx unknown
-
1953
- 1953-08-20 DE DEB27115A patent/DE1043628B/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE734094C (en) * | 1940-08-01 | 1943-04-09 | Ig Farbenindustrie Ag | Process for the production of insulating compounds |
DE800704C (en) * | 1948-10-02 | 1950-11-30 | Basf Ag | Process for the continuous production of foam masses from synthetic resins u. Like. For insulation purposes |
DE832493C (en) * | 1949-06-09 | 1952-02-25 | Gewerkschaft Philippine | Method and device for filling molds, cavities or the like with pore-forming organic plastics |
DE813598C (en) * | 1950-03-04 | 1951-09-13 | Basf Ag | Process for the continuous production of foam masses from resins, glues and the like. like |
DE883343C (en) * | 1951-08-14 | 1953-07-16 | Metallgesellschaft Ag | Process for solidifying foamy masses of organic or inorganic substances produced by the blowing process |
DE901471C (en) * | 1951-12-24 | 1954-01-11 | Bayer Ag | Process for the production of porous or homogeneous plastic semi-finished products or finished articles based on polyurethane and device for carrying out the process |
Also Published As
Publication number | Publication date |
---|---|
NL243340A (en) | |
LU33069A1 (en) |
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