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Sand Casting

admin — Fri, 12 Mar 2010 05:00:48 +0000

Sand casting, the most widely used casting process, utilizes expendable sand molds to form complex metal parts that can be made of nearly any alloy. Because the sand mold must be destroyed in order to remove the part, called the casting, sand casting typically has a low production rate. The sand casting process involves the use of a furnace, metal, pattern, and sand mold. The metal is melted in the furnace and then ladled and poured into the cavity of the sand mold, which is formed by the pattern. The sand mold separates along a parting line and the solidified casting can be removed. The steps in this process are described in greater detail in the next section. In sand casting, the primary piece of equipment is the mold, which contains several components. The mold is divided into two halves – the cope (upper half) and the drag (bottom half), which meet along a parting line. Both mold halves are contained inside a box, called a flask, which itself is divided along this parting line. The mold cavity is formed by packing sand around the pattern in each half of the flask. The sand can be packed by hand, but machines that use pressure or impact ensure even packing of the sand and require far less time, thus increasing the production rate. After the sand has been packed and the pattern is removed, a cavity will remain that forms the external shape of the casting. Some internal surfaces of the casting may be formed by cores.

Sand casting is used to produce a wide variety of metal components with complex geometries. These parts can vary greatly in size and weight, ranging from a couple ounces to several tons. Some smaller sand cast parts include components as gears, pulleys, crankshafts, connecting rods, and propellers. Larger applications include housings for large equipment and heavy machine bases. Sand casting is also common in producing automobile components, such as engine blocks, engine manifolds, cylinder heads, and transmission cases.

Sand casting is able to make use of almost any alloy. An advantage of sand casting is the ability to cast materials with high melting temperatures, including steel, nickel, and titanium. The four most common materials that are used in sand casting are shown below, along with their melting temperatures.

Heat alarm

admin — Tue, 08 Dec 2009 08:48:34 +0000

DC Operated Standalone Fixed Temperature Heat Alarm (heat sensor, fire detector)

Operated with single 9V DC block battery

1. Sensitive only to a fixed temperature
2. Less nuisance alarms due to contamination, dust, and insects
3. With wall mount plate set for easy installation
4. LED operation indicator
5. Low battery warning indicator
6. Self-test button
7. CE and FCC approved, Compliant with the EN54 standard, BV ISO 9001:2000

Ceiling or wall mounting
Gives loud 85dB alarm sound.
Humidity:10﹪~85﹪
Potential early fire detect and auto alarm;
Temperature trigger: 55±5℃;
Operation ambient: 0~60℃
9V battery included
Product size: 107*107*37.5mm
Box Size:125mm x 110mm x 55mm
Weight:0.22kg
Carton size: 57.5cmx27cmx30cm 50pcs/ctn
GW/NW: 11kgs/12kgs

Operation Temperature	0^oC to 45^oC
Power Source	9V DC Battery
Alarm Point	58(135) fixed temperature triggers alarm
Alarm Current	30mA max
Standby Current	15uA max
Alarm Sound Level	85 decibels at 3m(10 ft)
Recommended Coverage	232 m² (2500 square feet )
Recommended Spacing	15m (50 feet)
Maximum Distance From Wall	7.5m (25 feet)

Conventional Heat Detector

Portable gas detector

Carbon Monoxide detector .

Smoke detector .

All kinds of Winch

admin — Tue, 08 Dec 2009 08:34:18 +0000

Our company specialize in Winch,ATV Winch,Electric Winch,Auto Winch,Power Winch,Hand Winch.Our products are widely accepted both by overseas customers and domestic trading companies, being exported globally.To be a car accessory, electric winches is use to save the vehicle itself when it is in badly condition such as in the snowfield, desert or muddy road. A. Winches on ATV’s If you ask any ATV enthusiast they are sure to tell you stories of getting into a precarious spot or into a deep mud-hole and not being able to get the ATV unstuck or out of the potentially dangerous position. Most of these same enthusiasts will tell you that their ATV winch saved the day. With most of the newer ATVs the ATV winch can mount to either the front or the back of the ATV and in some instances can be moved from front to back depending on the need. ATV winches come in a variety of strengths and can be used for nearly any purpose. Booster cable The size of the winch you chose to put on your ATV depends greatly on how the ATV is operated and the size of the ATV itself. Regardless of the size chosen, ATV winches are a must have for a true outdoor ATV enthusiast. B. Winches for trucks It used to be that the only trucks that had winches were tow trucks. Not today. Today, winches are found a large number of three quarter and one ton trucks. Back when winches were first becoming popular, they often were hand cranked winches. Today, the majority of winches on trucks are electric winches. An electric winch hooks up to the battery of the truck and is operated via a remote control. Electric winches are extremely helpful when the truck is in a situation where it is likely to be slipping and sliding and having to hand crank the winch in would be dangerous. An electric winch is also useful on larger trucks that would be nearly impossible to hand crank. On a large truck such as an F-350, the stronger the winch the better. Most people who put winches on their large trucks use a winch rated for at least 12,000 pounds. C. Winches for Trailers Not only do trucks and ATVs have winches, but many trailers today come with a winch. Trailer winches can be electronic or hand crank. It is common to find trailer winches on most boat trailers and some rvs. Most people can recall loading a boat onto a trailer and using the hand cranked trailer winch to pull the boat onto the trailer and secure the boat into place. The boat owner almost always got wet while reeling in his boat. Today, there are trailer winches in a variety of strengths and horsepower that are electronic and will pull the boat onto the trailer with just the push of a button. These electronic trailer winches have made the process of loading and unloading boats much simpler. Electric winch is apply for material hoisting in construction and it is the special hoisting machine for derrick,longmen rack

Booster Cable B1 Booster Cable B2

Compressed air cylinders

admin — Tue, 01 Dec 2009 03:08:17 +0000

The two basic types of compressed air cylinders are single acting and double acting. The single acting cylinder is able to perform an operating motion in only one direction. A single acting air cylinder has air pressure on one side of a piston flange, supplying force and motion, and a spring supplying the return force after pressure release. Single acting cylinders require approximately half the amount of air used by a double acting cylinder for a single operating cycle.

A double acting pneumatic cylinder has powered motion in two directions, with pressure on both sides. When a cylinder is pushed out in one direction, compressed air moves it back in the other direction. Air lines running into both ends of the cylinder supply the compressed air. The flow of compressed air is controlled with valves for both single and double acting cylinders. Other types of cylinders include rotary cylinders, impact cylinders and multiple- position, or opposed-thrust, cylinders.

Compressed air cylinders serve applications in a wide range of industries. Some examples include food processing and packaging, metal working, automotive, mining, textile, and forest industries.

Pneumatic cylinders are the final component in a pneumatic or compressed air control or power system. Pneumatic cylinders, also referred to as air cylinders, are devices that convert compressed air power into mechanical energy. This mechanical energy produces linear or rotary motion. In this way, the air cylinder functions as the actuator in the pneumatic system. The pneumatic cylinder consists of a steel or stainless steel piston, a piston rod, a cylinder barrel and end covers. As compressed air moves into a cylinder, it pushes the piston along the length of the cylinder. Compressed air or a spring, located at the rod end of the cylinder, pushes the piston back. Valves control the flow of compressed air to the cylinder. The choices for cylinder housing styles include the following: tie-rod, smooth body, pancake, rectangular, multiple bore, stainless steel, rodless, compact, miniature/microcylinder, clean profile and twin-rod cylinder.Sitemap link

Winch Trucks Camex Equipment provides rig-ups

admin — Tue, 01 Dec 2009 03:05:07 +0000

Winch Trucks Camex Equipment provides rig-ups of Winch trucks with customizable features that meet our customers unique requirements. Tulsa Winches mounted on a Kenworth truck, is the preferred choice of owner/operators. Tulsa has over 35 years of experience in designing and manufacturing planetary winches, speed reducers, and swing drives. All the products offered today have undergone the most rigorous testing program in the industry and are proven in field applications.booster cable

Winch( Trailer Winch, Truck Winch )

Key Specificaiton

Aprroved by CE

Rated Pull:1800lbs(810kg)/2000lbs(900kg)

Gear Ratio:4.1:1&9.8:1

Handle Length:250mm

Drum-hum Diameter:20mm/42mm

Diameter of cable size:4.8mm/5mm

ength of cable size:10m

Size of colered Belf:1.8×50x8m

Pcs/Ctn:4pcs

Packing Size:52×31x20cm

G/N.W:17/15kg 19/17kg

TRUCK Winch

Product Description Single line rated pull 9500lb(4300kg) Motor 5.5hp/4.0kw,Series Wound Control Remote switch, 12ft(3.7m) lead Gear train 3 Stage Planetary Gear reduction ratio 265:1 Braking Action Automatic In-The-Drum Cable 94ft of 21/64″ diameter (28m of 8.3mm diameter) Fairlead 4-Way Roller Fairlead Battery Leads 2 gauge, 72″(1.83m) Overall dimentions (LxWxH) 21.3″x6.3″x8.6″(562×160x218mm) Mounting Bolt Pattern 10.00″x4.50″(254×114.3mm) Weight N.W.84lbs (39kg) G.W.94lbs (43kg) MEAS 59×20x39.5cm(1PC)

Shanghai DL Tech & Trade Co., Ltd.

admin — Fri, 27 Nov 2009 08:09:34 +0000

Shanghai DL Tech & Trade Co.,Ltd.（Shanghai DL） was registered in Pudong New Area Shanghai,China with the right to import and export.It is specially specializing in Steel Structure Buildings and related materials.

Shanghai DL focuses on the most advanced domestic or international technology of design and manufacture of Steel Structure Buildings.The diverse modes,reasonable structure,easy assembly,fastness,durable,heat preservation,heat insulation,sound insulation,earthquake resistance,wind resistance,fire resistance etc.are the specialities of our buildings. It shows the most advanced level in this industry in China.

Building Type:
1. Residential houses
2. Industrial buildings such as warehouses, workshops, etc.
3. Middle-level and High-rise buildings
4. Buildings for other spaceWe always give service of the whole procedure from the design, processing to installation. innovative design,favourable price, high quality and circumspect service are our tenet of the cooperation with clients. We are sure that our products must be able to get admiration and acceptance by more more domestic and foreign friends

key contact Mr.Claudia Dai

mobile 13916537441

Tel. 86-21-62031215

Fax. 86-21-62033753

region shanghai,shanghai

street address Room 1001,No 4,Chenggong Building,Lane 256,Guangxin Road,Shanghai City

post code 200061

email dl@dl505.com

MSN dasun505@hotmail.com

skype claudia-dl505

url www.dl505.com

Domestic reverse osmosis system

admin — Fri, 13 Nov 2009 07:52:06 +0000

Our Domestic reverse osmosis system is the reverse osmosis system that purifies the water that you drink, giving it great taste and removing everything that could harm you in the short and long term.

FEATURES:

1. 3.2 Gallons Standards Water Storage Tank.

2. Polypropylene Made Housing

3. Automatic Shut-off Valve, 300cc Flow Restrictor, Stainless Steel Check Valve.

4. Long Reach Chrome Faucet.

5. water connector.

6. Drain Saddle Valve.

7. White Color 1/4 inch Tubing for System Connection

8. Completely Assembled

9. 100% Factory Tested and Sterilized Ready for Installation.

10. Installation Instruction.

WATER FITLER CARTRIDGES

1. (Stage 1) 5 Micron Sediment water Filter :With only five micron rating. It is effective in removing dirt, rust and sand particles.

2. (Stage 2) Granular Activated Carbon water Filter:It takes out 99% of the chlorine and organic chemicals. It provides enhanced reduction of taste, odor, and color.

3. (Stage 3) 1 Micron Sediment water Filter :With only 1 micron rating, provides effective filtration to protect your membrane.It provides for improved membrane performance up to 95% of TDS rejection.

4. (Stage 4) Reverse Osmosis Membrane:A thin film composite (TFC) high quality membrane that processes 50 gallons per day.It remove the following hard water contaminants that may be present in your water: lead, cooper, barium, chromium, mercury, sodium, cadmium, fluoride, nitrite, nitrate, and selenium. Sitemap
5. (Stage 5) Post Carbon water filter:This carbon post filter removes objectionable tastes and odors to enhance the quality of your drinking water. We are using NSF approved post carbon to guarantee the taste of water.
6.Easily connects to faucet with diverter valve
Water Filters

load cells sense

admin — Thu, 08 Oct 2009 09:03:53 +0000

Digital scales are devices to measure weights. These can weigh anything from light weighted to heavy bodies. The scales work on the principle of load cell technology in which load cells sense the weight of objects under certain conditions. The weight thus obtained is transferred into digital or electronic signals and gets displaced in digital formats.

Available in varying models, brands, sizes, and shapes, digital scales come with accessories such as batteries, calibration weights, scale pads, sitemap and trays. You are also given easy reference manuals with most scales. The scales vary in prices and quality.. link
our main products:

Load Cell
Compression Load Cell
Single Point Load Cell
Tension Load Cell
Aluminum alloy load cell/ Min sensor
Weighing Scale
Crane Scale
Bufferring Scale
Cylinder Scale
Short platform truck scale
Platform Scale
Truck Scale
Movable Truck Scale
Portable Truck Scale
Weigh Beams
Height Scale And Weight Scale
Fish scale and Post Scale
Weighing Accessories

The steel coil is supported and weighed by a saddle. There is rubber on the interface to protect the steel coil against damage. The weighing range is 6t, 10t, 20t, 30t. It has various functions like automatic weighing, coil material, number, width, and thickness input; data storage and printing; can be connected to the preceding PLC or controller. It has durable scale board and high stability. The size of the board can be customized. The design of our scale board makes it capable of resisting more powerful strike. It can be equipped with printer according to customer’s requirement. Steel coil scale is mainly used on steel coil packing and transporting line and processing line. Coil car transfer scale are full electronic NTEP platform sizes from 4′ * 6′ to 20′ * 10′. NTEP capacities from 20,000 lbs to 120,000 lbs. China load cell overload protection to 150%. Designed for 100% concentrated Load capacity (CLC).

water filters

Hello world!

admin — Tue, 29 Sep 2009 06:59:13 +0000

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