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Topic: Impregnation


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In the News (Sat 26 Dec 09)

  
  Impregnation
Impregnation is the fastest and most effective method of eliminating the problems of porosity and interior corrosion in metal castings, forgings, powdered metal parts, and plastics.
Impregnation is beneficial for sealing porosity prior to plating, conversion coating, painting and other such surface finishes.
More and more manufacturers are specifying impregnation for all parts, not just for purposes of salvage, but as part of their guarantee against defects.
www.fortwayneanodizing.com /01_Pages/impregnation.htm   (138 words)

  
  Class Definition for Class 442 - FABRIC (WOVEN, KNITTED, OR NONWOVEN TEXTILE OR CLOTH, ETC.)
Subject matter wherein the fabric is coated or impregnated with a material which is neither a foamed material nor a metal or alloy layer, which is not associated with any other preformed layer other than additional coatings or impregnations, and which is not characterized by a particular or differential weave or knit pattern.
Subject matter wherein the coating or impregnation is weather proof, water vapor resistant, or moisture resistant, the weather proofness or water vapor resistance or moisture resistance being specifically stated.
Subject matter wherein the coating or impregnation which is not specified as improving the "hand" or increasing the softness of the fabric acts as a lubricant or a surface friction reducing agent.
www.uspto.gov /go/classification/uspc442/defs442.htm   (3441 words)

  
 [No title]   (Site not responding. Last check: 2007-11-03)
In this case, the impregnation fluid passes strictly in a concurrent flow direction, that is, impregnation fluid and chips move in a downwards direction.
The impregnated chips are continuously output via output means, here in the form of an outlet 10, possibly also in combination with bottom scrapers (not shown in the drawing), at the bottom of the impregnation vessel 30.
impregnation fluid is established in a direction opposite to the sinking motion of the chips in at least the upper part of the impregnation vessel.
www.wipo.int /cgi-pct/guest/getbykey5?KEY=03/106765.031224&ELEMENT_SET=DECL   (5531 words)

  
 [No title]   (Site not responding. Last check: 2007-11-03)
The reference claims that greater wetout and impregnation are achieved due to the pressure head, the heating of the fibers and the capillary action of the fibers.
A"wall"of resin is maintained upstream from the impregnation chamber to minimize the air that is trapped between the resin and the fiber bundles and to prevent air from entering the high pressure impregnation chamber.
For instance, the impregnation device of this invention may be mounted proximate rotating fiber spools in order to obtain the benefits of this invention in conducting filament winding operations, wherein both the fiber spools and the impregnation head (s) would rotate about a fixed or axially moving mandrel or work piece.
www.wipo.int /cgi-pct/guest/getbykey5?KEY=98/58785.981230&ELEMENT_SET=DECL   (6901 words)

  
 Resin Impregnation
Impregnation is the process of sealing leaks in machined components made of iron, bronze, aluminum, zinc, magnesium, steel, powder metal and plastics, as well as alloys and ceramics.
Impregnation can also be used before electroplating, lacquering and applying baked enamel finishes.
In these applications, impregnation prevents bleedout from acid etches and electrolytes, as well as gassing and blistering by materials absorbed into porous areas that finishes have sealed.
www.ciprocessing.com /resin.htm   (201 words)

  
 New Impregnation Thermocondencical Technology of Production
The thermocondense way of impregnation is controlled process and assumes uniform distribution of a impregnative liquid in a structure of a capillary-porous material at opportunity of regulation of quantity of absorbed substance.
Opportunity of uniform distribution of an active component irrespective of the form of a carrier is shown at impregnation of the catalytic carriers, at impregnation of fibrous materials, etc. The inculcation of new technology in the majority of cases is possible on the base equipment of the manufacture without its replacement or reconstruction.
At impregnation of fibrous materials has managed to increase quantity of a component that was laid on the body surface up to 30 %, as well as to supply significant improvement of penetration of the high vicious structures inwards of filaments of a material.
www.ukrainebiz.com /technical/proj7.htm   (575 words)

  
 PD Narrative, Former Nansemond Ordnance Depot, NPL, Superfund, US EPA
The Impregnation Kit Area is an approximately 300,000 square foot, rectangular area in the southwestern portion of Nansemond, about 1000 feet from the Nansemond River.
Impregnation kits consist of XXCC3 (a fine, white, granular, crystal powder) and a "honey-like syrup" or "fl waxy material." XXCC3 was used to neutralize chemical agents.
In the summer of 1999, a contractor for the Corps took samples of the soil in the Impregnation Kit Area to confirm that the excavation had successfully removed contaminated soil and to check for hazardous substances, pollutants, and contaminants in 20 acres surrounding the excavation.
www.epa.gov /superfund/sites/npl/pdel/pnar1537.htm   (657 words)

  
 Impregnation equipment for the production of high quality thin sections
Impregnation systems are used mainly in application areas such as geology or paleontology where porous thin sections are required to be manufactured.
The IU-30 is ideal for impregnating large samples or multiple small samples when materials are too soft or friable for processing from a raw state.
Epovac vacuum impregnation unit is ideal for impregnating porous specimens to make subsequent processing possible.
www.logitech.uk.com /impreg.asp   (168 words)

  
 Blank Impregnation
I intend to impregnate one with one final coat of spar and finish the other rod with the usual three coats of varnish.
Pour the impregnation sauce back into the original can, give it a squirt of Bloxygen, and seal - a one quart can should be more than enough to impregnate ten to 20 or more 2/2 blanks.
I think the idea behind impregnation is not only to provide a liquid and vapor barrier (which is what varnish does) but also to fill in the parts of the bamboo structure with resin so that it can't physically take on water vapor.
www.bamboorodmaking.com /html/blank_impregnation.html   (10919 words)

  
 Automotive Finishing: VACUUM IMPREGNATION: An Alternative Method - electronic component sealing technique
Vacuum impregnation sealing is not an external coating process, rather it is a process that internally seals parts using a vacuum pressure chamber, which impregnates liquid resin into minute pores in the part's surface.
Impregnation sealing solved our problems for a small price per part increase, without the high cost of a tooling change or major redesign.
Given the fact that vacuum impregnation helps manufacturers meet their quality goals, it should no longer be seen as a value-added process, but rather a value-guaranteed process.
www.findarticles.com /p/articles/mi_m0HRR/is_2001_Spring/ai_75532385   (1099 words)

  
 product innovations   (Site not responding. Last check: 2007-11-03)
The impregnation chamber size is much smaller than a traditional chamber allowing for efficient removal of the air from the porosity, which is the key characteristic of the impregnation process.
Following the impregnation process, the component is centrifuged to recover the excess resin from the surface and machined features.
The impregnation system can operate with no human involvement and may be integrated into almost any manufacturing and casting scenario, occupying less than 700 sq.
www.moderncasting.com /archive/ProductInnos/2005/Prod_098_01.asp   (640 words)

  
 Impregnation   (Site not responding. Last check: 2007-11-03)
After the impregnation process the wood is dry and ready for use or further treatment.
The impregnation process is flexible since the wood protection chemicals are stored and kept separated from the carbon dioxide carrier.
After the impregnation process has been completed the gas and the wood protection chemicals are separated again by releasing the pressure and lowering the temperature in the gas.
www.harnisch.com /win/edit21.htm   (613 words)

  
 Chromia-bonded refractory body devoid of vitreous and sintered bonding - Patent 4077808   (Site not responding. Last check: 2007-11-03)
The hardening is accomplished by impregnating the porous body with a metal compound, which may be in solution, which compound is capable of being converted to the metal oxide in situ at a temperature below sintering temperature in the range of from about 600.degree.
This also may be accomplished by impregnation of the porous structure with a water solution of a soluble metal compound convertible to an oxide and subsequently converting same to the oxide by simply elevating the temperature to the required conversion point.
This was accomplished by impregnating the refractory base material with a nitrate, chloride, acetate or other highly water soluble salt or an acid of the oxide desired, and then converting to the metal oxide by heating slowly to an elevated temperature.
www.freepatentsonline.com /4077808.html   (9887 words)

  
 Maldaner France - Frequently Asked Questions   (Site not responding. Last check: 2007-11-03)
Impregnation does not add mechanical strength to a part.
The maximum porosity dimension (X) suitable for impregnation is approximately 1/20th of the surface (Y).
Parts may be impregnated either rough or machined.
www.maldaner.fr /uk_faq.html   (155 words)

  
 Catalyst Impregnation
A simple, inexpensive, conserving, precise and rapid method to impregnate catalytic supports, such as activated carbon, alumina etc., is thus desired.
Flexible modular units were developed that can be operated in a wide range of temperature, pressure etc. to process pellets of various materials and shapes.
The compact modules allow a choice between superficial and deep impregnation, ensure precise control over the depth of penetration, and perform the drying step after dipping.
www.ukrainebiz.com /technical/catalyst_impregnation.htm   (485 words)

  
 impregnation - OneLook Dictionary Search
Impregnation : A to Z of Terms related to the Thermal Spray Process and Surface Engineering [home, info]
Phrases that include impregnation: silver impregnation, foot's reticulin impregnation stain, gomori silver impregnation stain, gomoris silver impregnation stain, impregnation fetish
Words similar to impregnation: fecundation, fertilisation, fertilization, impregnate, permeation, pervasion, saturation, suffusion, more...
www.onelook.com /?w=impregnation   (256 words)

  
 58-3 Mass transfer analysis in vacuum impregnation of fruits   (Site not responding. Last check: 2007-11-03)
The objective of this work was to analyze VI of apple slabs with sugar syrups at different calcium and zinc concentrations and model the mass transfer of both minerals in OD or VI process.
Final concentrations of calcium and zinc in the impregnated fruit were in the range of 113-314 ppm and 20.4-114 ppm respectively.
Average errors of 47.7% and 27.3% were obtained in the calcium composition predictions using the OD or the VI mathematics principles respectively and were 45.5% and 38.3% for the change of zinc concentrations.
ift.confex.com /ift/2003/techprogram/paper_18334.htm   (348 words)

  
 FR Doc 03-1144
The Impregnation Kit Area (also known as the ``Impregnite Kit'' or ``XXCC3'' area) is an approximately 300,000 square foot, rectangular area in the southwestern portion of Nansemond, about 1000 feet from the Nansemond River.
This means that, under current law, any new buildings on the Impregnation Kit Area would connect to the city water main, reducing the likelihood that people would choose to drill wells and use ground water beneath the Impregnation Kit Area.
Impregnation Kit Area The Impregnation Kit Area (also known as the Impregnite Kit or XXCC3 area) is an approximately 300,000 square foot, rectangular area in the southwestern portion of Nansemond, about 1000 feet from the Nansemond River.
a257.g.akamaitech.net /7/257/2422/14mar20010800/edocket.access.gpo.gov/2003/03-1144.htm   (3699 words)

  
 CWT Industries - Vacuum Impregnation Machine   (Site not responding. Last check: 2007-11-03)
Vacuum impregnation is a process where aluminum castings are impregnated with plastic, which fills porous openings, sealing the casting.
Through casting processes known as "Lost Foam" all casting cost were reduced substantially, the offsetting cost of impregnation allowed them to produce a cylinder head or block at a higher profit rate than their previous process.
You can see how, without vacuum impregnation of a repaired part, potentially the casting that you have just processed through your rebuilding facility may have a hidden flaw that will show up as a warranty claim.
www.cwtindustries.com /vacuumimpreg.htm   (865 words)

  
 Ultrasonic impregnation   (Site not responding. Last check: 2007-11-03)
During ultrasonic impregnation, penetration of impregnating composition provided by capillary forces and the pressure produced by the weight of the liquid is intensified by cavitation phenomena and acoustic flows which enable better impregnation in shorter times.
The processes that have received the widest recognition are ultrasonic impregnation of windings of transformers and electric machines, glass fillers, insulation of cables and wires.
Ultrasonic impregnation processes can be implemented using ultrasonic baths, washing units and dispersers.
www.vniitvch.spb.ru /english/usound/impr.htm   (121 words)

  
 KYOCERA Chemical | Products | Lineup | Manufacturing Instruments / Measuring Instruments
Potting resins for ignition use in cars and fly-back has the highest production amount in the car industry which operates by strict quality management.
As well as insulating varnish, we supply impregnation-processing machines that select suitable impregnation method (Dip or Drop) to meet each customer's operation.
Sold together with varnish, we totally support wide various users, from household appliance manufacturers to in-vehicle parts manufacturers, and have earned customers trust in our finely-tuned response.
www.kyocera-chemi.jp /english/prdct/list/mi/index.html   (176 words)

  
 Plating Clinic - Vacuum Impregnation - 06/02
G.G. Answer: Vacuum impregnation can be used when working with materials that have a high degree of porosity.
Vacuum impregnation allows you to seal the part so that these liquids cannot be trapped.
You can find information on the various types of vacuum impregnation and its history from the Society of Vacuum Coaters, www.svc.org.
www.pfonline.com /articles/clinics/0602cl_plate4.html   (219 words)

  
 IMPREGNATION TREATMENT AND COATING OF WOOD IN AUTOCLAVES USING THE DOUBLE VACUUM SYSTEM
It is used for the vacuum impregnation of windows-frames, shutters, doors, as well as loose elements, by using a large range of preservatives for the protection against fungoses and insects, to dye and paint first and finishing coats.
The pieces to treat are hanged to a movable frame and put into the autoclave, which after having been hermetically closed, performs the process by an automatic sequence consisting in:
The process may be set in order to obtain a more or less impregnation depth according to the quality requirements.
www.isve.com /en/intro_imp-pg.htm   (490 words)

  
 Impregnation Techniques, Methods and Chemicals Bibliography   (Site not responding. Last check: 2007-11-03)
In case of very loose or brittle material the sediment may have to be pre-impregnated in the field, before sampling and transport.
The sediment is covered and partially impregnated with a cementing agent.
Samples of soils and sediments are hardened in Amsterdam by impregnation with an unsaturated polyester resin, Frencken Synolite, type 544-A-3, with monostyrene as thinner, cyclonox LNC as catalyst and cobaltoctate (1 %) as accelerator (see for the composition the table below).
spartan.ac.brocku.ca /~jmenzies/tech.html   (2665 words)

  
 Refractory abrasive body containing chromium oxide and method of producing it - Patent 4007020
The method of claim 7 wherein a clay or inorganic chromium compound binder is mixed with the finely divided particles prior to forming the structure which serves to hold the particles together during the impregnation and cure cycles.
The thoroughly impregnated material is then cured in an oven with the final temperature reaching at least 600.degree.- 1000.degree.
Where the ceramic material is impregnated with a high concentration of phosphoric acid having dissolved therein aluminum phosphate crystals until saturated at from 250.degree.- 400.degree.
www.freepatentsonline.com /4007020.html   (10076 words)

  
 IMPREGNATION, RING FASTENERS, MOUNTING SYSTEM
Impregnation has developed during decades of experience and continues to be improved and extended to suit new materials and the ever-changing needs of the market.
At all LIPPERT-UNIPOL facilities impregnation is constantly subjected to strict quality control procedures.
Whilst most impregnation used is non-toxic, free of solvents and environmentally friendly, we also offer a range of traditional solvent based impregnations if desired.
www.lippert-unipol.co.uk /html/pr_range/impregnation.htm   (176 words)

  
 Journal Abstract   (Site not responding. Last check: 2007-11-03)
In this study, a conventional direct impregnation process was used to prepare the sulfurized PAC by impregnating WPAC with sodium sulfide (Na2S) solution.
Furthermore, an innovative compositive impregnation process was developed and then compared with the conventional direct impregnation process.
The compositive impregnation process combines carbonization, activation, and sulfur impregnation in a single step to prepare the sulfurized powdered activated carbon.
www.awma.org /Journal/PreviewDisplayAbstract.asp?PaperID=1245   (355 words)

  
 Leeb Balkone - Coloured impregnation
The individual balcony parts are placed in a dip tank filled with impregnating agent where the whole surface is completely impregnated.
Subsequent coats are then applied to the base impregnation by brush.
We provide a selection of common shades for coloured impregnation and you can select a suitable one from our colour chart.
www.leeb.at /seiten/iseite/E/farbimpregnierung   (77 words)

  
 HARC - Vacuum/Pressure Epoxy Resin Impregnation of Electrical Coils   (Site not responding. Last check: 2007-11-03)
It is often difficult to prevent movement of the electrical conductor in a precision wound coil.
To overcome this problem, HARC uses a resin impregnation of the coil.
HARC can impregnate and cure coils as large as 30 inches in diameter and 36 inches in length.
www.harc.edu /harc/Content/About/Capabilities/ShowCapability.aspx/316   (130 words)

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