Knife application

REZTHANES 1980A 1980B, aqueous polyurethane base or single coat, is designed for knife over roll or floating knife application on goods normally coated with solvent coatings where either recovery or protected environment is in place. 

Putties. Used in the glazing of wood sash, putties are generally based on linseed oil, filled with calcium carbonate or blends of calcium carbonate and titanium dioxide. Formulations are shown in Table 4. Containing 11-12% oil, they dry by oxidation to hard, inflexible joints with little movement possible. Putties are supplied as bulk compounds for knife application to wood or metal sash. Most putties are used in industrial, commercial, and maintenance glazing however, significant quantities continue to be used by homeowners in residential glazing. 

FIGURE 8.3 A schematic diagram of roll and knife application [9]. 

Today the principal outlets are knife handles, table-tennis balls and spectacle frames. The continued use in knife handles is due to the pleasant appearance and the ability of the material to after-shrink around the extension of the blade. Table-tennis balls continue to be made from celluloid since it has been difficult to match the bounce and handle of the celluloid ball, the type originally used, with balls fabricated from newer polymers. Even here celluloid is now meeting the challenge of synthetic polymers. Spectacle frames are still of interest because of the attractive colour. There are, however, restrictions to their use for this application in certain countries and cellulose acetate is often preferred. 

Today a wide range of modem water treatment processes and programs are available that have been developed and perfected to suit the many different types and applications of boilers now operating. These include the many high-pressure (HP) units around the world, which tend to be operated within extremely strict (often knife edge ) control parameters. 

The silver gray metal can be cut with a knife, although it only melts at 1545 °C (for comparison, iron 1538 °C). It is the rarest of the "rare earths", but is nevertheless more abundant than iodine, mercury, and silver. Thulium has few applications, especially because it is relatively expensive. The element occurs naturally as a single isotope, namely 169Tm (compare bismuth). The artificial, radioactive 170Tm is a transportable source of X-rays for testing materials. Occasionally used in laser optics and microwave technology. 

Application of controlled amounts of foam to the substrate is by knife-on-roller, knife-on-blanket, floating knife, horizontal pad or furnishing roller with doctor blade, or by squeegee across a printing screen. 

Rubber coated fabric is cut to give a bias to the fabric on its application to the tyre carcass. The knife angle can be adjusted in the cutting machine. 

Although it involves a knife rather than a gun, this case illustrates two continuing themes that will be applied to firearm regulation (1) the question of whether the right to bear arms is collective or individual, and (2) the application of the police power of the state to the types of weapons people may have and the manner in which they may be carried. This case cast an early vote for the collective position and upheld the state s police power. 

Safety Note Making the incision for hot-spotting is best done by a special application of the glass-knife to the tube which, being difficult to describe, is illustrated in Fig. 2.15(a). Note that it is the tip of the thumb that supports the glass tube, so that if it should shatter, there is at worst a flesh wound. If the joint of the thumb were used (Fig. 2. A b)) a tendon would be at risk ... 

Recommended Dilutions as is Applications Paint remover for wood and metal surfaces Notes Paint on with brush and remove with putty knife, steel wool, etc. 

Organosols find their major application in coatings, which may be applied by spray, dip, knife, roller, etc. Typical products are coated aluminum siding, fabrics, paper, industrial coatings, etc. 

Metallic substances vary in hardness from, e.g., sodium and gallium which can easily be cut with a knife, to very hard materials such as tungsten, which finds applications in making drills etc. Their melting and boiling points are equally variable, and correlate fairly well with their hardness. Thus caesium and gallium melt just above room temperature, while tungsten melts at 3380 °C. The most characteristic properties of metals are ... 

Particles (or traces thereof) between seat and disc - especially frequent in pump applications 1. Use a harder and different seat/disc combination. 2. Make sure a knife = edged seat arrangement is used. 3. Use easy to retrofit and compatible soft-seat design - preferably O-ring design. 4. Use bellow valves in case large particles are found or use a rupture disc at both valve inlet and outlet. 

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