NO131688B - - Google Patents
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- Publication number
- NO131688B NO131688B NO391571A NO391571A NO131688B NO 131688 B NO131688 B NO 131688B NO 391571 A NO391571 A NO 391571A NO 391571 A NO391571 A NO 391571A NO 131688 B NO131688 B NO 131688B
- Authority
- NO
- Norway
- Prior art keywords
- container
- powder
- plastic powder
- sprinkled
- plastic
- Prior art date
Links
- 239000000843 powder Substances 0.000 claims description 19
- 239000004033 plastic Substances 0.000 claims description 17
- 239000011248 coating agent Substances 0.000 claims description 10
- 238000000576 coating method Methods 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 7
- 229920001169 thermoplastic Polymers 0.000 claims description 4
- 239000004416 thermosoftening plastic Substances 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 8
- 239000000758 substrate Substances 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000006223 plastic coating Substances 0.000 description 2
- 229920001944 Plastisol Polymers 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000004999 plastisol Substances 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F3/00—Pistons
- F02F3/16—Pistons having cooling means
- F02F3/20—Pistons having cooling means the means being a fluid flowing through or along piston
- F02F3/22—Pistons having cooling means the means being a fluid flowing through or along piston the fluid being liquid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F3/00—Pistons
- F02F3/0015—Multi-part pistons
- F02F3/0023—Multi-part pistons the parts being bolted or screwed together
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F3/00—Pistons
- F02F3/0015—Multi-part pistons
- F02F3/003—Multi-part pistons the parts being connected by casting, brazing, welding or clamping
- F02F2003/0061—Multi-part pistons the parts being connected by casting, brazing, welding or clamping by welding
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F2200/00—Manufacturing
- F02F2200/04—Forging of engine parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2201/00—Metals
- F05C2201/04—Heavy metals
- F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
- F05C2201/0448—Steel
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Coating Apparatus (AREA)
Description
Anordning til å belegge gjenstander, særlig større metallgjenstander med termoplast. Device for coating objects, especially larger metal objects with thermoplastic.
Ved en kjent metode til å belegge By a known method of coating
metallgjenstander eller -deler med termoplast har man gått frem på den måte at der i en beholder er anordnet et filter og at der ovenpå filteret er anbrakt en masse av plastpulver, i hvilken den gjenstand som skal belegges trenger ned. Be-tegningen finner sted ved at der blåses fortrinnsvis oppvarmet luft gjennom filteret og plastpulveret. En annen metode består i at vedkommende gjenstand dyp-pes i en såkalt «plastisol», dvs. en flytende plastmasse. metal objects or parts with thermoplastic, the approach has been taken in such a way that a filter is arranged in a container and that a mass of plastic powder is placed on top of the filter, into which the object to be coated penetrates. The coating takes place by blowing preferably heated air through the filter and the plastic powder. Another method consists in the object in question being dipped in a so-called "plastisol", i.e. a liquid plastic mass.
Disse kjente metoder har imidlertid However, these known methods have
den ulempe at de bare med vanskelighet kan benyttes for belegning av store gjenstander, og at dessuten avkjølingen av plastbelegget foregår så hurtig at plastbelegget ikke festner seg ordentlig til rae-tallunderlaget, da det tar for meget varme fra metallet. Det er også i forbindelse med de kjente metoder foreslått å strø plas-ten i pulverform på gjenstanden. the disadvantage that they can only be used with difficulty for coating large objects, and that furthermore the cooling of the plastic coating takes place so quickly that the plastic coating does not adhere properly to the rae number substrate, as it takes too much heat from the metal. In connection with the known methods, it has also been proposed to sprinkle the plastic in powder form on the object.
Ved belegning av større gjenstander krever de kjente metoder forholdsvis komplisert apparatur, bl. a. en etterbe-handling av gjenstanden for å oppnå en tilstrekkelig langsom avkjøling. When coating larger objects, the known methods require relatively complicated equipment, e.g. a. a post-treatment of the object to achieve a sufficiently slow cooling.
Foreliggende oppfinnelse vedrører en The present invention relates to a
anordning til å belegge gjenstander, særlig større metallgjenstander med termoplast, hvor gjenstanden påstrøs et plastpulver som sintres fast i ønsket sjikttyk-kelse, idet oppfinnelsen går ut på med enkle midler å kunne belegge større gjenstander, særlig av metall, men også gjenstander av f. eks. plast, porselen, kunst-stoffer og tre, på en sådan måte at der device for coating objects, especially larger metal objects with thermoplastic, where the object is sprinkled with a plastic powder that is sintered firmly in the desired layer thickness, as the invention aims to be able to coat larger objects, especially of metal, but also objects of e.g. e.g. plastic, porcelain, synthetic materials and wood, in such a way that there
oppnås et jevnt belegg som alltid hefter fast til underlaget. an even coating is achieved which always adheres firmly to the substrate.
Med dette formål for øye består fremgangsmåten i henhold til oppfinnelsen i at en om en horisontal akse dreibar beholder som er beregnet på å være delvis fylt med plastpulver og inne i hvilken den gjenstand som skal belegges holdes i omdreining, på innsiden er utstyrt med skovler eller lommer ved hjelp av hvilke det fortrinnsvis oppvarmede plastpulver løftes opp fra beholderens bunn og drysses over gjenstanden. With this aim in mind, the method according to the invention consists in a container rotatable about a horizontal axis, which is intended to be partially filled with plastic powder and inside which the object to be coated is held in rotation, is equipped on the inside with paddles or pockets by means of which the preferably heated plastic powder is lifted from the bottom of the container and sprinkled over the object.
Ved en anordning for fremgangsmå-tens utførelse er der sørget for innadrettet trekk fra anordningens forside, og at beholderen på motsatt side har en med en filterduk dekket åpning i tilknytning In the case of a device for carrying out the method, provision is made for an inward draft from the front of the device, and that the container on the opposite side has an adjacent opening covered with a filter cloth
til en sugeinnretning, i det øyemed å hindre at pulver skal drysse ut på den forside hvor apparatet betjenes. to a suction device, in order to prevent powder from sprinkling onto the front where the device is operated.
Den nevnte beholder oppvarmes ved at varm luft blåses inn i et rom som omgir beholderen, slik at plastpulveret og luften inne i beholderen holdes på en ønsket temperatur. The said container is heated by blowing hot air into a room surrounding the container, so that the plastic powder and the air inside the container are kept at a desired temperature.
Den nevnte skovlinnretning (løfte-innretning) kan være som lommer i veg-gen på selve beholderen som også om-dreies. The mentioned shovel device (lifting device) can be like pockets in the wall of the container itself which is also rotated.
Oppfinnelsen er rent skjematisk an-skueliggjort på tegningen, hvor: Fig. 1 viser en anordning for utførelse av fremgangsmåten i henhold til oppfinnelsen, sett fra en ende av beholderen. The invention is purely schematically illustrated in the drawing, where: Fig. 1 shows a device for carrying out the method according to the invention, seen from one end of the container.
Fig. 2 viser et sideriss til fig. 1. Fig. 2 shows a side view of fig. 1.
Fig. 3 er et sideriss svarende til fig. Fig. 3 is a side view corresponding to fig.
2, men illustrerer den ovenfor nevnte «avsugning» av pulveret. 2, but illustrates the above-mentioned "extraction" of the powder.
På tegningen betegner 1 beholderen som er omgitt av en kappe 2. Beholderen er ved hver ende understøttet av valser 3 som er roterbare på en slik måte at beholderen vil dreie seg ved omdreining av valsene 3. In the drawing, 1 denotes the container which is surrounded by a jacket 2. The container is supported at each end by rollers 3 which are rotatable in such a way that the container will rotate when the rollers 3 rotate.
I fig. 2 betegner 4 en motor med snek-keutveksling og 5 betegner en kjede-transmisjon mellom de to drivvalser på hver sin side av beholderen. In fig. 2, 4 denotes a motor with a worm gear and 5 denotes a chain transmission between the two drive rollers on either side of the container.
Beholderen 1 er på innsiden forsynt med et stort antall jevnt fordelte lommer eller skovler 6. Som antydet ved lin-jen 7 er beholderen delvis, dvs. ved bun-nen, fylt med en masse av plastpulver, som således fyller de lommer 6 i beholderen som dekkes av pulvermassen. For belegging av en gjenstand med plast blir gjenstanden på forhånd oppvarmet og føres inn i beholderen 1; i hvilken der er anordnet en ikke vist drivinnretning for fastholdelse og omdreining av gjenstanden. Deretter dreies beholderen 1, slik at de med plastpulver fylte lommer ved beholderens bunn føres oppover og over gjenstanden, slik at plastpulveret fra lommene vil drysse over gjenstanden. The container 1 is provided on the inside with a large number of evenly distributed pockets or scoops 6. As indicated by the line 7, the container is partially, i.e. at the bottom, filled with a mass of plastic powder, which thus fills the pockets 6 in the container which is covered by the powder mass. For coating an object with plastic, the object is pre-heated and introduced into the container 1; in which a drive device, not shown, is arranged for retaining and rotating the object. The container 1 is then turned, so that the pockets filled with plastic powder at the bottom of the container are guided upwards and over the object, so that the plastic powder from the pockets will sprinkle over the object.
Gjenstanden som på forhånd er blitt oppvarmet til f. eks. 300° C, overdrysses i løpet av noen få sekunder når et forholdsvis tynt lag er ønskelig; når et tykkere lag er ønskelig, skjer over dry ssingen i til-svarende lengere tid. Da både gjenstanden, beholderen, plastpulveret og luften kan være oppvarmet, er det lett mulig å regulere avkjølingen slik at den belagte gjenstand ikke kjøles for fort, idet beleg-get i så tilfelle ikke festner seg ordentlig til underlaget, da det trekker for meget varme fra metallet. The object which has been heated in advance to e.g. 300° C, sprinkled over within a few seconds when a relatively thin layer is desired; when a thicker layer is desired, the sprinkling takes place for a correspondingly longer time. As both the object, the container, the plastic powder and the air can be heated, it is easily possible to regulate the cooling so that the coated object does not cool too quickly, as the coating in that case does not adhere properly to the substrate, as it absorbs too much heat from the metal.
I fig. 1 er der antydet varmerør 8 for tilførsel av varm luft til kappen 2, dvs. til det rom som omgir beholderen. In fig. 1 there is an indication of heating pipe 8 for the supply of hot air to the jacket 2, i.e. to the room surrounding the container.
Som illustrert i fig. 3 er der sørget for innadrettet trekk fra anordningens forside, idet beholderen på den motsatte side har en med en filterduk dekket åpning i tilknytning til en vifte 10 med av-løp. Herved hindres at pulver drysses ut på den forside hvor apparatet betjenes. As illustrated in fig. 3 there is provision for an inward draft from the front of the device, the container on the opposite side having an opening covered with a filter cloth adjacent to a fan 10 with drain. This prevents powder from being sprinkled on the front where the device is operated.
Claims (2)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK541370A DK123730B (en) | 1970-10-23 | 1970-10-23 | Piston for internal combustion engines. |
Publications (2)
Publication Number | Publication Date |
---|---|
NO131688B true NO131688B (en) | 1975-04-01 |
NO131688C NO131688C (en) | 1975-07-09 |
Family
ID=8142236
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO391571A NO131688C (en) | 1970-10-23 | 1971-10-21 |
Country Status (15)
Country | Link |
---|---|
JP (1) | JPS5429645B1 (en) |
BE (1) | BE774337A (en) |
BR (1) | BR7107075D0 (en) |
DK (1) | DK123730B (en) |
ES (1) | ES396291A1 (en) |
FI (1) | FI51989B (en) |
FR (1) | FR2187021A5 (en) |
GB (1) | GB1336520A (en) |
IE (1) | IE35765B1 (en) |
IT (1) | IT942737B (en) |
NL (1) | NL7114547A (en) |
NO (1) | NO131688C (en) |
SE (1) | SE365284B (en) |
SU (1) | SU550129A3 (en) |
YU (1) | YU34811B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5712299Y2 (en) * | 1976-07-12 | 1982-03-11 | ||
DK172217B1 (en) * | 1995-08-11 | 1998-01-05 | Dampskibsselskabet Af 1912 | Piston for diesel engines |
DE102007016945A1 (en) * | 2007-04-05 | 2008-10-30 | Mahle International Gmbh | Piston for an internal combustion engine |
RU193836U1 (en) * | 2018-11-09 | 2019-11-18 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Керченский государственный морской технологический университет" (ФГБОУ ВО "КГМТУ") | COOLED PISTON OF KREYTSOPFNY INTERNAL COMBUSTION ENGINE |
-
1970
- 1970-10-23 DK DK541370A patent/DK123730B/en not_active IP Right Cessation
-
1971
- 1971-10-21 JP JP8292571A patent/JPS5429645B1/ja active Pending
- 1971-10-21 NO NO391571A patent/NO131688C/no unknown
- 1971-10-22 YU YU268971A patent/YU34811B/en unknown
- 1971-10-22 SE SE1343371A patent/SE365284B/xx unknown
- 1971-10-22 IE IE133471A patent/IE35765B1/en unknown
- 1971-10-22 FR FR7138134A patent/FR2187021A5/fr not_active Expired
- 1971-10-22 SU SU1707835A patent/SU550129A3/en active
- 1971-10-22 GB GB4927371A patent/GB1336520A/en not_active Expired
- 1971-10-22 FI FI299171A patent/FI51989B/fi active
- 1971-10-22 BE BE774337A patent/BE774337A/en not_active IP Right Cessation
- 1971-10-22 IT IT7047871A patent/IT942737B/en active
- 1971-10-22 ES ES396291A patent/ES396291A1/en not_active Expired
- 1971-10-22 NL NL7114547A patent/NL7114547A/xx not_active Application Discontinuation
- 1971-10-22 BR BR707571A patent/BR7107075D0/en unknown
Also Published As
Publication number | Publication date |
---|---|
BR7107075D0 (en) | 1973-04-10 |
SE365284B (en) | 1974-03-18 |
YU34811B (en) | 1980-03-15 |
FI51989B (en) | 1977-01-31 |
NL7114547A (en) | 1972-04-25 |
IE35765L (en) | 1972-04-23 |
NO131688C (en) | 1975-07-09 |
ES396291A1 (en) | 1974-04-16 |
IE35765B1 (en) | 1976-05-12 |
IT942737B (en) | 1973-04-02 |
JPS5429645B1 (en) | 1979-09-25 |
BE774337A (en) | 1972-02-14 |
DK123730B (en) | 1972-07-24 |
DE2151869A1 (en) | 1972-04-27 |
DE2151869B2 (en) | 1973-01-04 |
FR2187021A5 (en) | 1974-01-11 |
YU268971A (en) | 1979-09-10 |
SU550129A3 (en) | 1977-03-05 |
GB1336520A (en) | 1973-11-07 |
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