SE537611C2 - A method of estimating the aging of a plastic material and container including such plastic material - Google Patents
A method of estimating the aging of a plastic material and container including such plastic material Download PDFInfo
- Publication number
- SE537611C2 SE537611C2 SE1351387A SE1351387A SE537611C2 SE 537611 C2 SE537611 C2 SE 537611C2 SE 1351387 A SE1351387 A SE 1351387A SE 1351387 A SE1351387 A SE 1351387A SE 537611 C2 SE537611 C2 SE 537611C2
- Authority
- SE
- Sweden
- Prior art keywords
- container
- wall
- plastic material
- marker
- aging
- Prior art date
Links
- 239000000463 material Substances 0.000 title claims abstract description 63
- 229920003023 plastic Polymers 0.000 title claims abstract description 59
- 230000032683 aging Effects 0.000 title claims abstract description 53
- 239000004033 plastic Substances 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000003550 marker Substances 0.000 claims abstract description 54
- 238000007689 inspection Methods 0.000 claims abstract description 10
- 238000001816 cooling Methods 0.000 claims abstract description 9
- 239000004743 Polypropylene Substances 0.000 claims description 12
- 229920001155 polypropylene Polymers 0.000 claims description 12
- 239000004952 Polyamide Substances 0.000 claims description 8
- 229920002647 polyamide Polymers 0.000 claims description 8
- -1 polypropylene Polymers 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000003365 glass fiber Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 2
- 238000011179 visual inspection Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 description 4
- 239000011152 fibreglass Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/44—Resins; Plastics; Rubber; Leather
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
- B07C5/3404—Sorting according to other particular properties according to properties of containers or receptacles, e.g. rigidity, leaks, fill-level
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8803—Visual inspection
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/958—Inspecting transparent materials or objects, e.g. windscreens
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/22—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/44—Resins; Plastics; Rubber; Leather
- G01N33/445—Rubber
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Immunology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Pathology (AREA)
- Food Science & Technology (AREA)
- Engineering & Computer Science (AREA)
- Medicinal Chemistry (AREA)
- Molecular Biology (AREA)
- Biophysics (AREA)
- Details Of Rigid Or Semi-Rigid Containers (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
Abstract
SAMMANDRAG BehaIlare (1) i form av till exempel en expansionstank i ett kylsystem, med en yttervagg (5) innefattande ett atminstone delvis genomskinligt plastmaterial vars opacitet akar vid aldring och en markor (6) for att indikera aldring av plastmaterialet. Markoren är anordnad sa att den är synlig fran utsidan av behallaren genom yttervaggen endast sa lange yttervaggens opacitet underskrider en med en viss aldringsgrad hos plastmaterialet forknippad opacitet. Ett forfarande for att skatta aldring av ett namnt plastmaterial innefattar anordnande av en markor i en behallare med en yttervagg innefattande plastmaterialet, visuell inspektion av markoren genom yttervaggen, och, baserat pa namnda inspektion, skattning av graden av aldring hos plastmaterialet. Markoren anordnas synlig genom yttervaggen endast sa lange opaciteten underskrider en med en viss aldringsgrad hos plastmaterialet forknippad opacitet. SUMMARY Container (1) in the form of, for example, an expansion tank in a cooling system, with an outer wall (5) comprising an at least partially transparent plastic material whose opacity increases with aging and a marker (6) to indicate aging of the plastic material. The marker is arranged so that it is visible from the outside of the container through the outer wall only as long as the opacity of the outer wall is less than an opacity associated with a certain degree of aging of the plastic material. A method of estimating aging of a named plastic material comprises arranging a marker in a container with an outer wall comprising the plastic material, visually inspecting the marker through the outer wall, and, based on said inspection, estimating the degree of aging of the plastic material. The marker is arranged visibly through the outer wall only as long as the opacity falls below an opacity associated with a certain degree of aging of the plastic material.
Description
Forfarande for att skatta aldrinq av ett plastmaterial och behallare innefattande ett sadant plastmaterial UPPFINNINGENS OMRADE Foreliggande uppfinning avser en behallare innefattande ett plastmaterial vars opacitet okar vid aldring, ett forfarande fOr att skatta aldring hos ett plastmaterial och anvandning av ett sadant forfarande for att skatta aldring av en tank i ett fordon. FIELD OF THE INVENTION The present invention relates to a container comprising a plastic material whose opacity increases with aging, a method for estimating the aging of a plastic material and the use of such a method for estimating the aging of a plastic material. a tank in a vehicle.
BAKGRUNDSTEKNIK Anvandningen av plastmaterial, exempelvis i behallare av olika slag är idag mycket utbredd. Plastmaterialen har manga fordelaktiga egenskaper, sasom slagtalighet, god formbarhet, lag vikt, korrsosionsbestandighet och kostnadseffektiv tillverkning. De anvands darfor i stor utstrackning bland annat inom fordonsindustrin, dar de utnyttjas till exempel for att tillverka expansionskarl for kylsystem och tankar for bransle, spolarvatska 20 med mera. BACKGROUND ART The use of plastic materials, for example in containers of various kinds, is very widespread today. The plastic materials have many advantageous properties, such as impact resistance, good formability, low weight, corrosion resistance and cost-effective manufacturing. They are therefore widely used, for example in the automotive industry, where they are used, for example, to manufacture expansion vessels for cooling systems and tanks for industry, washer water and more.
Da plastmaterial aldras paverkas deras mekaniska egenskaper negativt och risken for skador pa materialet okar. Expansionstankar for kylsystem i motorfordon, liksom tankar for exempelvis spolarvatska, tillverkas ofta av genomskinligt eller delvis genomskinligt plastmaterial sasom polypropen (PP), polyamid (PA), eller glasfiberforstarkt polypropen eller polyamid. Da denna typ av plastmaterial aldras paverkas forutom de mekaniska egenskaperna aven materialens optiska egenskaper pa sa vis att de blir mindre genomskinliga och opaciteten med 1 andra ord akar. Hur snabbt aldringen av plastmaterialet sker beror bland annat pa vilka pafrestningar det utsatts far. Hoga tryck och temperaturer samt UV-stralning är faktorer som vanligen accelererar aldringen av plastmaterial. Ett plastmaterial 5 som anvands i en expansionstank i ett kylsystem hos ett motorfordon är utsatt for hoga tryck och temperaturer och aldras darmed relativt snabbt. Da de mekaniska egenskaperna hos plastmaterialet forsamras finns en risk for att tanken gar sander, med till exempel lackage som -1610. Ett problem är att det 10 exempelvis for tankar i motorfordon är svart att avgara nar aldringsgraden has plastmaterialet är sadant att tanken bar bytas ut. As plastic materials age, their mechanical properties are adversely affected and the risk of damage to the material increases. Expansion tanks for cooling systems in motor vehicles, as well as tanks for, for example, washer fluid, are often made of transparent or partially transparent plastic material such as polypropylene (PP), polyamide (PA), or fiberglass-reinforced polypropylene or polyamide. As this type of plastic material ages, in addition to the mechanical properties, the optical properties of the materials are affected in such a way that they become less transparent and the opacity, in other words, decreases. How fast the plastic material ages is dependent on, among other things, the stresses to which it is subjected. High pressures and temperatures as well as UV radiation are factors that usually accelerate the aging of plastic materials. A plastic material 5 used in an expansion tank in a cooling system of a motor vehicle is exposed to high pressures and temperatures and thus ages relatively quickly. As the mechanical properties of the plastic material deteriorate, there is a risk that the tank will go sandy, with for example paint such as -1610. One problem is that, for example for tanks in motor vehicles, it is black to emit when the degree of aging of the plastic material is such that the tank had to be replaced.
EP0068086 visar ett forfarande for att bestamma aldring hos 15 fargade plastartiklar genom att belysa dessa och mata deras reflektans. Plastartiklar med en reflektans utanfor ett bestamt intervall sorteras bort. Ett problem med detta forfarande är dock att det forutsatter tillgang till specie!! matutrustning. EP0068086 discloses a method for determining aging of colored plastic articles by illuminating them and feeding their reflectance. Plastic articles with a reflectance outside a certain range are sorted out. One problem with this procedure, however, is that it requires access to the specie !! food equipment.
US 2012/0085155 visar ett forfarande for att bestamma aldring has plastmaterial dar en deformationsmatning utfors med hjalp av en testanordning. Aven detta forfarande kraver dock att anvandaren har tillgang till specialutrustning. US 2012/0085155 discloses a method for determining aging of plastic material in which a deformation feed is performed by means of a test device. However, this procedure also requires the user to have access to special equipment.
SAMMANFATTNING AV UPPFINNINGEN Syftet med foreliggande uppfinning är att anvisa ett i atminstone nagon aspekt forenklat och forbattrat satt att avgara am 2 plastmaterial hos en behallare aldrats sa att de mekaniska egenskaperna darmed forsamrats. SUMMARY OF THE INVENTION The object of the present invention is to provide a simplified and improved method in at least some aspect of disposing of plastic material in a container aged so that the mechanical properties are thereby impaired.
Detta syfte uppnas enligt en forsta aspekt av uppfinningen genom en behallare enligt patentkravet 1. Behallaren har en yttervagg innefattande ett atminstone delvis genomskinligt plastmaterial vars opacitet akar vid aldring och innefattar en markor far att indikera aldring av namnda plastmaterial. Markoren är anordnad sa att den är synlig fran utsidan av behallaren 10 genom namnda yttervagg endast sa lange yttervaggens opacitet underskrider en med en viss aldringsgrad hos plastmaterialet forknippad opacitet. This object is achieved according to a first aspect of the invention by a container according to claim 1. The container has an outer wall comprising an at least partially transparent plastic material whose opacity increases with aging and comprises a marker indicating aging of said plastic material. The marker is arranged so that it is visible from the outside of the container 10 through said outer wall only as long as the opacity of the outer wall is less than an opacity associated with a certain degree of aging of the plastic material.
Med en behallare enligt uppfinningen innefattande en mark& gar det att avgara om plastmaterialet i behallaren har aldrats sa mycket att behallaren bar bytas ut enbart genom att se pa behallaren. Om plastmaterialets aldringsgrad är oacceptabel och behallaren bar bytas ut, är markoren inte langre synlig vid inspektion fran utsidan. Det är alltsa enkelt att vid en snabb inspektion se om behallaren enligt uppfinningen behover bytas ut. With a container according to the invention comprising a soil, it is possible to determine whether the plastic material in the container has aged so much that the container should be replaced only by looking at the container. If the degree of aging of the plastic material is unacceptable and the container should be replaced, the marker is no longer visible during inspection from the outside. It is therefore easy to see during a quick inspection whether the container according to the invention needs to be replaced.
Enligt en utforingsform av uppfinningen utgors det namnda plastmaterialet av polypropen (PP) eller polyamid (PA). PP har 25 god kemikalieresistens, god utmattningsbestandighet och tal hoga temperaturer och kan darfor med fordel anvandas i behallare for vatska vid temperaturer upp till ca 100°C. PP ar dessutom ett relativt billigt material. PA tal hoga temperaturer, har god mekanisk hallfasthet och notningshallfasthet. 3 Enligt en utforingsform av uppfinningen innefattar yttervaggen enbart det namnda plastmaterialet. Behallaren far i denna utforingsform en lattviktig yttervagg. 5 Enligt en annan utforingsform av uppfinningen innefattar yttervaggen forutom det namnda plastmaterialet aven glasfiber. Inblandningen av glasfiber forstarker behallarens yttervagg. Yttervaggen kan till exempel innefatta 10 % glasfiber. According to an embodiment of the invention, the said plastic material is made of polypropylene (PP) or polyamide (PA). PP has good chemical resistance, good fatigue resistance and high temperatures and can therefore be used to advantage in containers for liquids at temperatures up to about 100 ° C. PP is also a relatively inexpensive material. PA speaks high temperatures, has good mechanical resistance and notch resistance. According to an embodiment of the invention, the outer cradle comprises only the said plastic material. In this embodiment, the container has a lightweight outer wall. According to another embodiment of the invention, in addition to the said plastic material, the outer wall also comprises glass fiber. The incorporation of fiberglass reinforces the outer wall of the container. The outer cradle may, for example, comprise 10% glass fiber.
Enligt en utforingsform av uppfinningen är markoren anordnad inuti behallaren pa ett avstand fran yttervaggen. Forekomsten av en markor paverkar pa detta satt behallarens hallfasthet minimalt. Denna utforingsform är fordelaktig i de fall da behallaren är avsedd for en genomskinlig vatska och hoga krav stalls pa behallarens hallfasthet. According to an embodiment of the invention, the marker is arranged inside the container at a distance from the outer wall. The presence of a marker in this way minimizes the half-strength of the container. This embodiment is advantageous in cases where the container is intended for a transparent liquid and high demands are placed on the half-strength of the container.
Enligt en annan utforingsform av uppfinningen är markoren anordnad i eller pa namnda yttervagg. Pa detta vis inverkar markoren inte pa utrymmet i behallaren. Dessutom kan markoren i denna utforingsform aven anvandas for att skatta aldring hos behallare som är fyllda med ett ogenomskinligt innehall. According to another embodiment of the invention, the marker is arranged in or on said outer wall. In this way, the marker does not affect the space in the container. In addition, the marker in this embodiment can also be used to estimate aging in containers filled with an opaque content.
Enligt en utforingsform av uppfinningen utgors markoren av en fast kropp vars farg avviker fran behallarens. Markoren blir da tydligt synlig genom yttervaggen sa lange yttervaggens opacitet tillater. According to an embodiment of the invention, the marker consists of a solid body whose color deviates from that of the container. The marker then becomes clearly visible through the outer cradle as long as the outer cradle's opacity allows.
Enligt en utforingsform av uppfinningen ar behallaren en expansionstank. Behallaren enligt uppfinningen lampar sig val 30 som expansionstank, eftersom det for en sadan är onskvart att 4 enkelt kunna avgara om materialet i tanken aldrats sa att den maste bytas ut. Expansionstanken kan till exempel vara en expansionstank i ett kylsystem hos ett fordon. 5 Enligt en annan aspekt av uppfinningen uppnas ovan namnda syfte genom ett forfarande for att skatta aldring av ett atminstone delvis genomskinligt plastmaterial vars opacitet akar vid aldring. Forfarandet innefattar stegen: anordnande av en markor i en behallare, vilken behallare innefattar en yttervagg innefattande namnda plastmaterial, visuell inspektion av namnda markor genom namnda yttervagg, och baserat pa namnda inspektion, skattning av graden av aldring hos plastmaterialet, 15 varvid markoren anordnas sa att den är synlig genom yttervaggen endast sa lange yttervaggens opacitet underskrider en med en viss aldringsgrad hos plastmaterialet forknippad opacitet. According to an embodiment of the invention, the container is an expansion tank. The container according to the invention is suitable as an expansion tank, since for such it is undesirable to be able to easily dispense if the material in the tank has aged so that it must be replaced. The expansion tank can, for example, be an expansion tank in a cooling system of a vehicle. According to another aspect of the invention, the above-mentioned object is achieved by a method for estimating aging of an at least partially transparent plastic material whose opacity increases with aging. The method comprises the steps of: arranging a marker in a container, which container comprises an outer wall comprising said plastic material, visually inspecting said marks through said outer wall, and based on said inspection, estimating the degree of aging of the plastic material, wherein the marker is arranged so that it is visible through the outer wall only as long as the opacity of the outer wall is less than an opacity associated with a certain degree of aging of the plastic material.
Med forfarandet enligt uppfinningen kan alltsa aldringsgraden hos ett plastmaterial skattas utan tillgang till nagon specialutrustning. Detta är sarskilt anvandbart da en skattning av aldringsgraden utfors som ett delmoment i en mer omfattande besiktning av skilda egenskaper hos ett flertal komponenter, som till exempel vid en kontrollbesiktning eller genomgang av ett fordon. Aldringsgraden hos till exempel en expansionstank i ett kylsystem hos fordonet kan med forfarandet enligt uppfinningen skattas snabbt och enkelt. With the method according to the invention, the degree of aging of a plastic material can thus be estimated without access to any special equipment. This is particularly useful when an estimate of the aging rate is performed as a part of a more comprehensive inspection of various properties of a number of components, such as during a control inspection or inspection of a vehicle. The degree of aging of, for example, an expansion tank in a cooling system of the vehicle can be estimated quickly and easily with the method according to the invention.
Enligt en utforingsform av denna andra aspekt av uppfinningen bestams aldringsgraden vid vilken markoren inte langre är synlig genom yttervaggen atminstone delvis genom att valja ett avstand till yttervaggen, vid vilket avstand markoren anordnas. Genom att aka avstandet till yttervaggen minskas aldringsgraden vid vilken markoren inte lagre är synlig genom denna. According to an embodiment of this second aspect of the invention, the degree of aging at which the marker is no longer visible through the outer wall is determined at least in part by selecting a distance to the outer wall, at which distance the marker is arranged. By driving the distance to the outer wall, the degree of aging at which the marker is not visible is reduced by this.
Enligt en utforingsform bestams aldringsgraden vid vilken markoren inte langre är synlig genom yttervaggen atminstone delvis genom att valja farg pa markoren. Genom att valja en farg som kontrasterar mer respektive mindre mot behallaren kan forfarandet anpassas sa att aldringsgraden vid vilken markoren inte langre syns okas respektive minskas. 15 Enligt en utforingsform utfors steget att anordna markoren i behallaren vid tillverkning av behallaren. Markoren kan cla integreras med behallaren, till exempel genom att formgjutas tillsammans med denna. According to one embodiment, the degree of aging at which the marker is no longer visible through the outer wall is determined at least in part by choosing the color of the marker. By choosing a color that contrasts more or less with the container, the procedure can be adapted so that the degree of aging at which the marker is no longer visible is increased or decreased. According to one embodiment, the step of arranging the marker in the container is performed in the manufacture of the container. The marker can cla be integrated with the container, for example by being molded together with it.
Uppfinningen avser aven anvandning av ett forfarande enligt ovan for att skatta aldring av en tank i ett fordon, sasom en expansionstank i ett kylsystem hos fordonet. The invention also relates to the use of a method as above for estimating the aging of a tank in a vehicle, such as an expansion tank in a cooling system of the vehicle.
Andra fordelaktiga sardrag has uppfinningen och fordelar med 25 denna framgar av den nedan foljande beskrivningen. 6 KORT BESKRIVNING AV RITNINGARNA Uppfinningen kommer i det foljande att narmare beskrivas med hjalp av utfOringsexempel med hanvisning till bifogade ritningar, 5 dar Fig. 1visar en schematisk perspektivvy av en behallare enligt uppfinningen i form av en expansionstank, Fig. 2visar en vy snett ovanifran av en del av behallaren i fig. 1, Fig. 3visar en sidovy av en del av behallaren i fig. 1, Fig. 4visar ett flodesschema over ett forfarande enligt uppfinningen. 15 DETALJERAD BESKRIVNING AV UTFORINGSFORMER AV UPPFINNINGEN En behallare enligt en forsta utforingsform av uppfinningen, schematiskt visad i fig. 1-3, är i form av en expansionstank 1 for kylvatska i ett kylsystem hos ett motorfordon. Expansionstanken är tillverkad av genomskinlig polypropen forstarkt med 10 `)/0 glasfiber och är tillverkad genom formgjutning av tva delar, har visade som en undre del 2 och en ovre del 3. De bada delarna 2, 3 har sedan svetsats ihop till formande av en behallare med en 25 runt behallaren lopande svetsfog 4. Expansionstanken 1 har saledes en enda sammanhangande yttervagg 5, vars opacitet beror av aldringsgraden hos polypropenet. Med okande aldring akar aven opaciteten hos yttervaggen 5. Behallaren innefattar en markor 6 for att skatta aldringen hos plastmaterialet. Markoren 6 är har i form av en kraftigt fargad knapp i plastmaterial, vilken 7 anordnats inuti expansionstanken 1 pa ett avstand L fran yttervaggen 5. I den visade utforingsformen är markoren 6 fastsatt pa en fran tankens undre del 2 uppstickande del 7. Den uppstickande delen 7 är har formad i ett stycke med den undre delen 2 och har en langd sadan att den skjuter in i den ovre delen 3 av expansionstanken 1. Markoren 6 är alltsa efter sammanfogning av den nedre delen 2 och den ovre delen 3 placerad i expansionstankens ovre del 3 pa avst6ndet L fran yttervaggen 5. Expansionstanken 1 innefattar aven innervaggar 8, vilka bland annat utjamnar spanningar i plastmaterialet och akar hallfastheten hos expansionstanken 1. Far tydlighetens skull visas innervaggarna 8 i expansionstankens ovre del 3 endast i fig. 2-3. Naturligtvis innefattar expansionstanken aven passager for vatskeflode till och fran expansionstanken och mellan de celler 9 som avgransas av innervaggarna 8, men for tydlighetens skull har dessa utelamnats i ritningarna. Other advantageous features of the invention and advantages thereof are apparent from the following description. BRIEF DESCRIPTION OF THE DRAWINGS The invention will be described in more detail below with the aid of exemplary embodiments with reference to the accompanying drawings, in which Fig. 1 shows a schematic perspective view of a container according to the invention in the form of an expansion tank, Fig. 2 shows an oblique view of a part of the container in Fig. 1, Fig. 3 shows a side view of a part of the container in Fig. 1, Fig. 4 shows a flow chart of a method according to the invention. DETAILED DESCRIPTION OF EMBODIMENTS OF THE INVENTION A container according to a first embodiment of the invention, schematically shown in Figs. 1-3, is in the form of an expansion tank 1 for coolant in a cooling system of a motor vehicle. The expansion tank is made of transparent polypropylene reinforced with 10 `) / 0 fiberglass and is made by molding two parts, has shown as a lower part 2 and an upper part 3. The two parts 2, 3 have then been welded together to form a container with a welding joint 4 running around the container. The expansion tank 1 thus has a single continuous outer wall 5, the opacity of which depends on the degree of aging of the polypropylene. With increasing aging, the opacity of the outer wall 5 also increases. The container comprises a marker 6 to estimate the aging of the plastic material. The marker 6 is in the form of a strongly colored button in plastic material, which 7 is arranged inside the expansion tank 1 at a distance L from the outer wall 5. In the embodiment shown, the marker 6 is fixed on a part 7 projecting from the lower part 2 of the tank. 7 is formed in one piece with the lower part 2 and has a length such that it projects into the upper part 3 of the expansion tank 1. The marker 6 is thus after joining the lower part 2 and the upper part 3 placed in the upper part of the expansion tank. part 3 at the distance L from the outer cradle 5. The expansion tank 1 also comprises inner cradles 8, which, among other things, equalize stresses in the plastic material and increase the half-strength of the expansion tank 1. For the sake of clarity, the inner cradles 8 in the upper part 3 of the expansion tank are shown only in Figs. 2-3. Of course, the expansion tank also includes passages for liquid flow to and from the expansion tank and between the cells 9 delimited by the inner cradles 8, but for the sake of clarity these have been omitted in the drawings.
Da expansionstanken 1 är nytillverkad är markoren 6 tydligt synlig genom yttervaggen 5. Vid anvandning utsatts expansions- tanken for stora tryck- och temperaturvaxlingar och materialet i expansionstanken aldras darfor relativt fort. Da expansionstanken 1 aldras akar yttervaggens 5 opacitet och markorens 6 synlighet paverkas. Dá opaciteten hos yttervaggen 5 overskrider opaciteten forknippad med en viss aldringsgrad hos yttervaggens 5 plastmaterial är markoren inte langre synlig genom yttervaggen 5. Detta är en indikation pa att expansionstanken bar bytas ut. Genom att anpassa fargen pa markoren och/eller avstandet L frail yttervaggen 5 kan aldringsgraden da markoren 6 inte langre syns styras. Avstandet L kan till exempel anpassas genom att Ora den uppstickande delen 7 langre eller kortare, eller genom 8 att variera tjockleken pa knappen vilken i denna utforingsform utgor markoren 6. Since the expansion tank 1 is newly manufactured, the marker 6 is clearly visible through the outer wall 5. During use, the expansion tank is exposed to large pressure and temperature fluctuations and the material in the expansion tank therefore ages relatively quickly. As the expansion tank 1 ages, the opacity of the outer wall 5 increases and the visibility of the marker 6 is affected. When the opacity of the outer wall 5 exceeds the opacity associated with a certain degree of aging of the plastic material of the outer wall 5, the marker is no longer visible through the outer wall 5. This is an indication that the expansion tank should be replaced. By adjusting the color of the marker and / or the distance L from the outer wall 5, the degree of aging when the marker 6 is no longer visible can be controlled. The distance L can be adjusted, for example, by making the protruding part 7 longer or shorter, or by varying the thickness of the button which in this embodiment constitutes the marker 6.
Markoren kan naturligtvis aven anordnas pa andra satt an det 5 ovan namnda sattet i behallaren. Till exempel kan markoren malas i en avvikande farg pa en uppstickande del i behallaren. The marker can of course also be arranged in other ways than the above-mentioned way in the container. For example, the marker can be painted in a different color on a protruding part of the container.
Enligt en andra utforingsform (ej visad) innefattar en behallare enligt uppfinnningen en markor i form av en pa yttervaggens insida placerad markering. Markeringens farg har valts sa att markeringen inte langre syns genom yttervaggen da denna aldrats sa mycket att behallaren bar bytas ut. Har är markeringen tryckt eller malad direkt pa yttervaggen, men den kan aven vara en infargning eller en bit material av avvikande farg vilken gjutits in i yttervaggen pa dennas insida. According to a second embodiment (not shown), a container according to the invention comprises a marker in the form of a marking placed on the inside of the outer wall. The color of the marking has been chosen so that the marking is no longer visible through the outer cradle as it has aged so much that the container had to be replaced. The marking is printed or painted directly on the outer wall, but it can also be a dye or a piece of material of a different color which has been cast into the outer wall on its inside.
Behallaren enligt uppfinningen kan aven vara i form av en tank for spolarvatska eller bransle, i ett fordon eller i en annan bransledriven maskin. Behallaren kan naturligtvis aven vara 20 avsedd for andra tillampningar, dar man enkelt vill kunna kontrollera behallarens aldringsgrad. The container according to the invention can also be in the form of a tank for washing liquid or fuel, in a vehicle or in another industry-driven machine. The container can of course also be intended for other applications, where it is easy to be able to control the aging rate of the container.
Ett forfarande enligt uppfinningen visas i fig. 4. Forfarandet anvands for att skatta aldring av ett atminstone delvis genomskinligt plastmaterial vars opacitet akar vid aldring. I ett forsta steg Si anordnas en mark& i en behallare, till exempel en expansionstank eller en annan behallare sasom beskrivits ovan. Detta steg S1 sker lampligen vid tillverkning av behallaren. Behallaren innefattar en eller flera yttervaggar innefattande namnda plastmaterial. Markoren anordnas sa att den är synlig 9 genom atminstone en av dessa yttervaggar da behallaren är nytillverkad. I ett andra steg S2, vilket lampligen utfors med jamna mellanrum, inspekteras markoren visuellt genom namnda yttervagg. Baserat pa denna inspektion skattas sedan graden av 5 aldring hos plastmaterialet i ett steg S3. Om yttervaggens opacitet underskrider en opacitet forknippad med en viss aldringsgrad hos plastmaterialet i yttervaggen är markoren synlig, och behallaren kan fortsatta att anvandas. Nar en tid passerat aterupprepas inspektionssteget S2. Om yttervaggens opacitet daremot overskrider en opacitet forknippad med en viss aldringsgrad hos plastmaterialet i yttervaggen syns inte langre markoren, och behallaren bar bytas ut i ett steg S4. A method according to the invention is shown in Fig. 4. The method is used to estimate aging of an at least partially transparent plastic material whose opacity increases with aging. In a first step Si, a soil is arranged in a container, for example an expansion tank or another container as described above. This step S1 suitably takes place during the manufacture of the container. The container comprises one or more outer walls comprising said plastic material. The marker is arranged so that it is visible through at least one of these outer walls as the container is newly manufactured. In a second step S2, which is suitably performed at regular intervals, the marker is visually inspected through said outer wall. Based on this inspection, the degree of aging of the plastic material in a step S3 is then estimated. If the opacity of the outer wall falls below an opacity associated with a certain degree of aging of the plastic material in the outer wall, the marker is visible, and the container can continue to be used. When a time has elapsed, the inspection step S2 is repeated. If, on the other hand, the opacity of the outer wall exceeds an opacity associated with a certain degree of aging of the plastic material in the outer wall, the marker is no longer visible, and the container should be replaced in a step S4.
Forfarandet enligt uppfinningen kan utforas for vilken lamplig behallare som heist, men lampar sig sarskilt for tankar i ett motorfordon, sasom i en lastbil, buss, eller personbil. Dessa tankar utsatts ofta for stora temperatur- och tryckvaxlingar, vilket gar det svart att forutsaga tankarnas aldringsprocess. The method according to the invention can be carried out for any suitable container which is hoisted, but is particularly suitable for tanks in a motor vehicle, such as in a truck, bus or passenger car. These tanks are often exposed to large temperature and pressure fluctuations, which makes it difficult to predict the tanks' aging process.
Uppfinningen är givetvis inte pa nagot satt begransad till de ovan beskrivna utforingsformerna, utan en mangd mojligheter till modifikationer darav torde vara uppenbara for en fackman pa omradet, utan att denne for den skull avviker fran uppfinningens grundtanke sadan denna definieras i bifogade patentkrav. The invention is of course not limited in any way to the embodiments described above, but a number of possibilities for modifications thereof should be obvious to a person skilled in the art, without this deviating from the basic idea of the invention as defined in the appended claims.
Claims (13)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE1351387A SE537611C2 (en) | 2013-11-22 | 2013-11-22 | A method of estimating the aging of a plastic material and container including such plastic material |
| PCT/SE2014/051319 WO2015076720A1 (en) | 2013-11-22 | 2014-11-07 | Method for estimating ageing of a plastic material, and container comprising such a plastic material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE1351387A SE537611C2 (en) | 2013-11-22 | 2013-11-22 | A method of estimating the aging of a plastic material and container including such plastic material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE1351387A1 SE1351387A1 (en) | 2015-05-23 |
| SE537611C2 true SE537611C2 (en) | 2015-07-28 |
Family
ID=53179877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE1351387A SE537611C2 (en) | 2013-11-22 | 2013-11-22 | A method of estimating the aging of a plastic material and container including such plastic material |
Country Status (2)
| Country | Link |
|---|---|
| SE (1) | SE537611C2 (en) |
| WO (1) | WO2015076720A1 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3121928A1 (en) * | 1981-06-03 | 1982-12-23 | Chemische Werke Hüls AG, 4370 Marl | METHOD FOR DETECTING AND ELIMINATING AGED PLASTIC OBJECTS NO LONGER USED |
| NL8103468A (en) * | 1981-07-22 | 1983-02-16 | Wavin Bv | METHOD AND APPARATUS FOR DETERMINING THE AGING STATE OF PLASTIC PRODUCTS |
-
2013
- 2013-11-22 SE SE1351387A patent/SE537611C2/en not_active IP Right Cessation
-
2014
- 2014-11-07 WO PCT/SE2014/051319 patent/WO2015076720A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015076720A1 (en) | 2015-05-28 |
| SE1351387A1 (en) | 2015-05-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106926436A (en) | A kind of method and the system based on lining for forming the component based on lining | |
| KR20080073702A (en) | Fuel tank | |
| US20100206427A1 (en) | Gas fuel vehicle | |
| US10234398B2 (en) | Deformation verification system and method of vehicle body | |
| BR112020011952A2 (en) | tire monitoring device, tire, and, production method of a tire monitoring device. | |
| JP2021014312A (en) | Multi-piled bag | |
| SE537611C2 (en) | A method of estimating the aging of a plastic material and container including such plastic material | |
| WO2014102556A1 (en) | Container with an indicating device | |
| DE602007000756D1 (en) | Method and installation for testing bottles and containers with flexible walls | |
| KR20170014865A (en) | Water sealing test equipment for automotive lamp aircap | |
| JP7375290B2 (en) | pressure vessel | |
| JP3120317U (en) | Storage tank leak detection device | |
| US20120318404A1 (en) | Tool and method for draining and refilling a cooling system | |
| ITMI962388A1 (en) | PROCEDURE FOR DETECTION AND DOCUMENTATION OF INCORRECT FUNCTIONS RELEVANT FOR THE EXHAUST GAS OF A VEHICLE WITH ENDOTHERMIC ENGINE | |
| EP3317499B1 (en) | Storage tank | |
| JP5240443B2 (en) | Cooling device for vehicle fuel cell | |
| US20160299074A1 (en) | Method and device for testing the surface quality of a component in particular of a cfrp component | |
| DE102013112824A1 (en) | withdrawal unit | |
| CN107554286A (en) | For vehicle Fuel Tanking Unit and there is its vehicle | |
| US20130087245A1 (en) | Cooling system filling air | |
| WO2006108976A2 (en) | Method for controlling filling of gas cylinders | |
| US20040069205A1 (en) | Fluid container with level indicator, and fluid level indicator assembly for a fluid container | |
| JP5442295B2 (en) | Method and apparatus for testing adhesion resistance of liquid composite rubber composite product to sealing liquid | |
| US20070006925A1 (en) | Washer fluid reservoir having a fluid-impermeable air vent patch | |
| US9982623B2 (en) | Apparatus and method for preventing overflow of fuel from vehicle fuel tank |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NUG | Patent has lapsed |