Friday, April 8, 2011

ARTU multi purpose drill bit






Special negative back grinding enables the tip to bore through materials with a filing action rather than a cutting action.

The tip is a blend of Cobalt and Tungsten Carbide designed for maximum hardness and resistance to heat and wear.

The Chrome Vanadium Steel Shank provides extra hardness and enormous strength.

For Rotary or Percussion Drilling

• Chrome Vanadium Steel Shank for enormous strength

• Resharpenable on a high quality grinding wheel

• No center punch needed - eliminates “walking”

• Outlasts regular carbide tipped bits

• Ideal for cordless drills, corded drills and drill presses

• Available in an assortment of popular sizes and sets

Monday, March 28, 2011

Waterjet

What is an abrasive water jet or hydrojet cutting machine system?
Abrasive jet and water only jet cutter use the technology of high pressure water typically between 30,000 and 60,000 psi, to create extremely concentrated force to cut stuff. A water cutter pressurizes a stream of pure water flow (without abrasive) to cut materials such as foam, rubber, plastic, cloth, carpet
and wood. Abrasive jet cutters mix abrasive garnet to a pressurized water stream to cut harder materials. Examples are: stainless steel, titanium, glass, ceramic tile, marble and granite. Waterjet metal cutting machine yields very little heat therefore no heat affected zone (HAZ), and hence in most cases will not require further heat treatment. Water jet machining is also considered as a "cold cut" process and therefore is safe for cutting flammable materials such as plastic and polymers. With a reasonable cutting speed setting, the edges resulted are often of satisfactory. Precision water jet cutter is a very handy and versatile cutting equipment with affordable price for stone cutting and metal working in job shops. Sometimes the system is referred as a water cut center

HYDRAUCUT

FEATURES

■ Professional cable cutter specifically for hydraulic cables.
■ For a straight and perfect cut.
■ Anti-slip rubber bottom.
■ Replacement blades available (BTL-71 BladeCut).

Monday, February 21, 2011

BLADDER TANK

Water Bladder Tank Basics
1. Water bladder tanks are tanks which contain a rubber bladder that is filled with either water or air. The majority of water bladder tanks have water-filled bladders. When a water faucet is turned on or a toilet is flushed, the water is piped in from the water tank. As the water pressure and air pressure get low, the contacts on the pressure switch click together. The pressure switch sends an electrical current to the water pump which causes the water pump to kick on and pipe water back into the water bladder tank. The amount of time it takes for the pressure switch to click on depends upon the size of the water bladder tank. The larger the water bladder tank, the longer it will be before the pressure switch starts to deliver electrical current to the water pump.
How the Water Bladder Tank Works
2. Water leaves the water bladder tank each time that the water is used in your home or yard. As the water leaves the tank, the bladder gets smaller and the water pressure drops within the tank. Water bladder tanks also contain air within the water tank. When the water leaves the tank, the air pressure inside the water bladder tank also drops. A pressure control switch, which is usually located near the water tank, senses the drop in pressure within the tank and, after the pressure lowers to a certain level, the contacts within the pressure switch are pushed together, which turns on the water pump. The activated water pump draws water from the well which refills the tank and restores the water and air pressure within the tank.
How the Water Bladder Tank Gets Refilled
3. While the pressure switch is activated, the water pump, which is generally located near the tank or inside the well itself, pulls water from under the ground and pumps the water back into the water tank's bladder. As the bladder is filled, the water pressure and air pressure rise back to their normal levels. After the water pressure and air pressure are back to normal, the contacts within the pressure switch are pulled away from each other. Once the pressure switch stops supplying power to the pump, the water pump stops pumping water into the tank. This process begins again each time water is used within the home or in the yard.


Read more: How Does a Water Bladder Tank Work? | eHow.com http://www.ehow.com/how-does_5001805_water-bladder-tank-work.html#ixzz1EbCIX8AT

Thursday, February 3, 2011

Beryllium copper

Beryllium copper also known as copper beryllium, BeCu or beryllium bronze, is a metal alloy of copper and 0.5 to 3% beryllium, and sometimes with other alloying elements. Beryllium Copper combines high strength with non-magnetic and non-sparking qualities. It has excellent metalworking, forming and machining qualities. It has many specialized applications in tools for hazardous environments, musical instruments, precision measurement devices, bullets, and aerospace. Beryllium-containing alloys create an inhalation hazard during manufacturing due to their toxic properties.

Beryllium copper is a ductile, weldable, and machinable alloy. It is resistant to non-oxidizing acids (for example, hydrochloric acid, or carbonic acid), to plastic decomposition products, to abrasive wear and to galling. Furthermore, it can be heat-treated to improve its strength, durability, and electrical conductivity. Beryllium copper attains the highest strength (to 1,400 MPa (200,000 psi)) of any copper-based alloy.[1]

As beryllium compounds are toxic there are some safety concerns for handling its alloys. In solid form and as finished parts, beryllium copper presents no particular health hazard. However, breathing its dust, as formed when machining or welding may cause serious lung damage.[2] Beryllium compounds are known human carcinogens when inhaled.[3] As a result, beryllium copper is sometimes replaced by safer copper alloys such as Cu-Ni-Sn bronze

Beryllium copper is a non-ferrous alloy used in springs, spring wire, load cells and other parts that must retain their shapes during periods in which they are subjected to repeated stress and strain. Due to its electrical conductivity, it is used in low-current contacts for batteries and electrical connectors. Because Beryllium copper is non-sparking but physically tough and nonmagnetic, it is used to make tools that can safely be used in environments where there are explosive vapors and gases e.g. oil rigs. Beryllium copper fulfills the demands of ATEX directive for use in Zone 0, 1, and 2.[5] Various tool types are available e.g. screwdrivers, pliers, spanners, cold chisels and hammers. Another metal sometimes used for non-sparking tools is aluminum bronze. Compared to tools made of steel, beryllium copper tools are more expensive, not as strong and wear out more quickly. However, the advantages of using beryllium copper in hazardous environments outweigh these disadvantages.

Friday, January 28, 2011

LENOX PRESS RELEASES

LENOX Introduces Tough T2 Technology™ for Reciprocating Saw

EAST LONGMEADOW, Mass. September 29, 2008 — LENOX®, a leading manufacturer of premium power tool accessories, hand tools, torches, solder and band saw blades, announces the introduction of LENOX T2 Technology reciprocating saw blades. This revolutionary new blade design delivers up to 100% longer blade life and 25% faster performance in metal cutting applications versus the prior generation of LENOX reciprocating saw blades. The new technology is applied to the entire range of metal cutting reciprocating saw blades including LENOX Gold™, LAZER™ and Bi-Metal.

Each T2 Technology blade features optimized tooth geometry for each unique TPI [tooth per inch] specification. The patent-pending design is optimized to minimize friction and heat build-up when cutting through the widest variety of metal materials.

The LENOX T2 Technology minimizes heat build-up by improving cutting efficiency which in-turn eliminates premature tooth dulling and blade failure. T2’s design prolongs blade life and produces a much faster cut – ultimately leading to higher productivity by spending more time cutting and less time changing blades.

“The T2 blade eliminates a reciprocating blade’s worst enemy, excessive heat build-up,” states Web Shaffer, Sr. Product Manager, LENOX. “But we don’t want users to just take our word for it. Try it for yourself – cut something to feel the difference between the LENOX T2 Technology and all other blades on the market. We are confident you will feel the difference right away!”

LENOX T2 Technology reciprocating blades are the best performing blades for cutting metal materials encountered by trade professionals on jobsites including black pipe, angle iron, threaded rod, uni-strut and electrical metal tubing [EMT]. Independent lab testing verifies that LENOX T2 Technology recips offer dramatically longer blade life and faster cutting performance than competitors’ blades.

LENOX T2 Technology reciprocating saw blades are sold through electrical, plumbing, HVAC, industrial distributors nationwide.