17 février 2011
Shanghai E-CHAMPION Technology Company Limited
Shanghai E-champion Technology Company Limited was found in 2003, we are a high technology company which focus on adhesive field. We specialize in manufacturing various kinds of self-adhesive tapes covering each kind of high-temperature insulating and masking tape (backing including PET, PI, Fiberglass Cloth, PTFE Fiberglass Cloth film coated with silicone adhesive)，screen protective film(which widely used in mobile phones, computers, LCD, touch screen)；PE protective film (used in surface of stainless steel, aluminum, carpet, glass); fiberglass self adhesive tape; cloth tape; reflective tape.
We have established close cooperation relationship with some factories, that is the basis for our continuous development. We use environmental or biodegradable materials to replace the original materials to meet your requirements. We have tracking and testing equipments to ensure product quality in raw material, coating, cutting and packaging. Some of our tape is certified by UL and RoHS.
During these years development, our products have exported to some areas and countries, such as: Europe, North America, Australia, Middle East. Our core philosophy is “cooperation and mutually beneficial in win-win situation”, with the goal of focusing on customers’ satisfaction, we will try our best to supply more competitive product to clients。
Thanks for your visiting, please feel free to let us know if you have any suggestion.
Friend Link: Load cell, Cross flow fan, Crusher, Die Casting, Ceramic Balls,Turbocharger kits, Mechanical Seal, Hand Tools, Neodymium Magnets, Lost Wax Casting, Sand Casting
02 août 2010
Homeytex Vertical blinds
Homeytex Company Limited is a professional Window blinds manufacturer and supplier located in Veken Zhenhai industrial park, with 50,000 square meters work shop and four factories inside. Its main sales items include Vertical blinds ,Roller blinds, Roman Shades, Venetian Blind Slat, Vertical blinds fabrics, Roller blinds fabrics, Vertical blind components, Roller Blinds, Roller Blind Components and anything you need in Blind Made to Measure and DIY business.
It already formed a complete production line from Yarn Spinning, Weaving, Dyeing, Coating, Slitting and Packing in Fabric Manufacturing business.Also owned 6 production line in Plastic extrusion business.
We have more than 7 years professional experience dealing with Client from Germany, Netherlands,Belgium,France,Australia,U.S.A,Canada. So we know very well what western people want and what western people afraid of when doing business with China. Our sales volume is up to 30,000,000USD per year until 2006. We get certificate of ISO9001:14001 and Oeko tex standard 100.
We can guarantee good quality met with European standard, much more lower price than you buy from local, Consistent Supplying chain, Superior Customer Service, Exclusive business on special products, Palletized Packing.
Sincerely hope all the Client world wide can build sound business relationship with us.
Sand Casting Foundry
Ruican Sand Casting is specialized in manufacturing Sand Casting, Investment Casting, Die Casting, Green Sand Casting,Sand Casting Part,Sand Mold Casting.
Foundry sand is used for making castings, and is primarily generated by the automotive industry and its part suppliers (these deliver approximately 95 of foundry sand). It consists of clean silica sand which is of high quality or lake sand which are bonded to make molds for ferrous (iron and steel) and non-ferrous (copper, aluminum, brass) metal castings. The following types of sands are used for making molds in the foundry industry: Green Sand, Resin Coated Sand, Molasses, Cold Box Sand, Hot Box Sand, and CO2 Sand.
Sand Casting Foundry Sand Casting Foundry Sand Casting Foundry
Sand Casting Processes in the Foundry
The two commonly used casting processes in the foundry system are as follows:
* The Sand Cast Systems --- The sand used for making sand cast moulds
for ferrous castings is largely green sand which comprises of silica
sand of high quality, around 10 per cent bentonite clay (which acts as
the binder), up to 5 per cent water and about 5 per cent sea coal (which
is an additive for improving the casting finish). This green sand
forms more than 90 per cent of the molding materials utilized in the
process. Various types of metals can be cast and it is the type of the
metal that determines the gradation of the sand and the additives that
are used in these systems.
* Chemically Bonded Sand Cast Systems --- These systems are used for
'cores' for producing cavities, which cannot be easily produced through
usual molding procedures and also for molds for nonferrous castings.
Here one or more organic binders are utilized along with catalysts and
various setting techniques. Foundry sand constitutes around 97 per cent
of this mixture.
Composition of Foundry Sand
While before being used, foundry sand is uniformly graded, the spent sand often contains
* Remnants of metal from the casting process as well as mold and core material with the binder in a partially degraded form;
* Leachable contaminants such as heavy metals and phenols which are
absorbed by the sand in the course of the molding procedures (these
phenols are produced by the thermal decomposition, at high temperatures,
of the organic binders during the process of pouring the metal);
* And, more specifically, high concentrations of elements such as
cadmium, lead, nickel, zinc and copper in brass and bronze foundries.
The green sand moulding process requires sand, clay and water to be mixed together to form a mould material that can be compacted around a pattern to produce a mould. Water develops the bonding characteristics of the clay, which binds the sand together, when used in its moist condition it is referred to as green.
When rammed and compacted around a pattern a mould of sufficient strength is produced to allow metal to be poured into it to produce a casting.
The green sand process can be used to produce castings in both aluminium and copper based metals. The process allows 90% to 95% reclamation of material and so provides a low cost form of production.
In essence we will always find the most suitable and cost effective method to casting whatever your requirement whether it be for individual light castings or multiple heavy castings.
Sitemap,Electric towel radiator,Ceramic Sanitary Ware,Sand Casting,China sanitary ware,Electric panel heater,Fan heater manufacturer, Electrical fan, China Electric heater, electric kettle, Seko, Seko Industrial Co.Ltd.
02 avril 2010
Sand Casting
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.
Materials
Melting temperature
Aluminum alloys 1220 °F
(660 °C)
Brass alloys 1980 °F (1082 °C)
Cast
iron 1990-2300 °F (1088-1260 °C)
Cast
steel 2500 °F (1371 °C)
The material cost for sand casting includes the cost of the metal, melting the metal, the mold sand, and the core sand. The cost of the metal is determined by the weight of the part, calculated from part volume and material density, as well the unit price of the material. The melting cost will also be greater for a larger part weight and is influenced by the material, as some materials are more costly to melt. However, the melting cost in typically insignificant compared to the metal cost. The amount of mold sand that is used, and hence the cost, is also proportional to the weight of the part. Lastly, the cost of the core sand is determined by the quantity and size of the cores used to cast the part.
Green Sand Casting, Aluminum Sand Casting, Grey Iron Casting, Aluminum gravity casting, Sand Casting Process Manufacturer, Turbocharger Parts, Gravity Die Casting
Advantages:
Can
produce very large parts
Can form complex shapes
Many material
options
Low tooling and equipment cost
Scrap can be recycled
Short
lead time possible
Applications:
Engine
blocks and manifolds, machine bases, gears, pulleys, agriculture
parts,marine parts,medical parts,hardware, automobile parts,ect.
09 mars 2010
Die Casting Toolings
We design, manufacture, supply and distributes technologically advanced Die Casting tolings,Pressure die casting tools, Aluminium die casting dies, zinc die casting moulds to the global market.
Tooling design: Our engineers and
technical staff will collaborate with our customer's own engineers and
technicians on the design of castings to ensure smooth production and
optimum performance of the finished product.
Our engineers designed
mould by PRO/ENGINEER, SOLIDWORKS, UNIGRAPHICS, AUTOCAD and simulation
analysis software to MAKE sure the quality and high efficiency before
tooling machining. Mould cavity and frame will be machined by automatic
CNC milling center, CNC turning lathe, EDM , wire cutting machines.
For die casting and tooling make fields, our experiences and technology
will be great helpful for you.
Now with the strong technical
strength and advanced production equipment, the assistance of
computer-aided design (CAD), computer-aided manufacture (CAM)
technology, the help of implement total quality management and service
system for quality products and excellent service to many domestic and
oversea markets, we earned some reputation, and earned some customers
from allowver the worlds. 
And our customer include some
famous world-known company, such as GM, Geely, Yamaha and so on.
Below are some infor for our die casitng toolings design and manufacture:
Diecasting
Part Weights and Sizes
Aluminum diecasting part sizes from
.001 pounds to 10 pounds.
* Diecasting Part sizes range from 800 x
800mm to 2 x 2mm.
* Surface area on cast parts up to about 0.8
square metres.
Diecasting Toolings type:
1. aluminum die
casting toolings
2. zinc die casting toolings
3. copper die
casting toolings
4. magnesium die casting toolings
E-mail: sales@diecastingmoulds.com
Url:
www.diecastingmoulds.com
02 mars 2010
Aluminum Die Casting
Alloys of aluminium are used in die casting more
extensively than alloys of any other base metals.
Die casting is especially suited to production of large quantities of
relatively small parts. The more important reasons for using light
metal casting are low weight, mechanical strength, stiffness and
electrical properties. Other applications are e.g. components for the
power transmission line in the vehicle industry and electronics
industry.
Typical applications of die cast aluminium alloys include:
* · Alloy 380.0 - Lawnmower housings, gear
* · Alloy A380.0 - Streetlamps housings, typewriter frames, dental
equipment
* · Alloy 360.0 - Frying skillets, cover plates, instrument cases,
parts requiring corrosion resistance.
* · Alloy 413.0 - Outboard motor parts such as pistons, connecting
rods, and housings
* Alloy 518.1 - Escalator parts, conveyor components, aircraft and
marine hardware and lit tings.
With die casting, it is possible to maintain close tolerances and produce good surface finishes. Die castings are made by injection of molten metal into metal molds under substantial pressure. Rapid injection and rapid solidification under high pressure combine to produce a dense, fine-grain surface structure, which results in excellent wear and fatigue properties. Our factory have Large spectrum of die casting machines (280T - 1600T),it can produce Variety of alloys available to meet in house production requirements and to provide quality custom-made die-casting parts for other industries
Hot Product: Aluminum Die Casting | Pressure Die Casting | Zinc Die Casting
08 janvier 2010
Aluminum pressure die casting
Alloys of aluminium are used in die casting more extensively than alloys of any other base metals.
Die casting
is especially suited to production of large quantities of relatively
small parts. The more important reasons for using light metal casting
are low weight, mechanical strength, stiffness and electrical
properties. Other applications are e.g. components for the power
transmission line in the vehicle industry and electronics industry.
Typical applications of die cast aluminium alloys include:
* · Alloy 380.0 - Lawnmower housings, gear
* · Alloy A380.0 - Streetlamps housings, typewriter frames, dental equipment
* · Alloy 360.0 - Frying skillets, cover plates, instrument cases, parts requiring corrosion resistance.
* · Alloy 413.0 - Outboard motor parts such as pistons, connecting rods, and housings
* Alloy 518.1 - Escalator parts, conveyor components, aircraft and marine hardware and lit tings.
With die casting, it is possible to maintain close tolerances and produce good surface finishes. Die castings are made by injection of molten metal into metal molds under substantial pressure. Rapid injection and rapid solidification under high pressure combine to produce a dense, fine-grain surface structure, which results in excellent wear and fatigue properties. Our factory have Large spectrum of die casting machines (280T - 1600T),it can produce Variety of alloys available to meet in house production requirements and to provide quality custom-made die-casting parts for other industries
See more: Die castings, Aluminum castings, Zinc castings, Copper castings
