zinc die casting-Advantages And Disadvantages Of Die Casting

What is Die CastMulti slider die casting machineing?

Die casting is a special metal casting。 It is an advanced method with a long development history on the basis of common metal casting technology。 This process， the molten or semi-molten state of the metal into the die casting machine pressure chamber under high pressure， the metal to high-speed filling into the cavity of the die-casting mold， and then the molten or semi-molten state of the metal will be solidified to the desired mold。 This is a highly efficient precision casting。die casting design development trend is to require better overall performance， higher precision， less allowance smooth surface castings。 In addition， the energy-saving requirements and increasing the voice of the community to restore the natural environment。 In order to meet these requirements， the new cast alloy development， smelting new technology and new equipment correspondingly。

Advantage of Die Casting Process

First， quality of die castings is good。 Casting size is accurate， stable， good exchangeability。 It can make the surface of the particles is thinner， elongation tissueMulti slider die casting machine density compact metal castings， and more compact metal surface hardness， higher density。 This method is suitabledie casting machine for the use of complex thin-walled metal castings， zinc alloy die casting thin-walled aluminum alloy thin-walled 0。5 mm to 0。3 mm， In addition， it is very suitable for the production of complex castings cannot use other methods。 Second， productivity is high。 The productivity of the die casting method is higher than traditional wet sand and resin sand casting process， however， far less than the automatic die casting mold。 However， aluminum castings， it can achieve high production efficiency。Die casting Third， it is economic。 The accuracy of the size of the die casting， surface finish， so the use of die casting without machining or processing can be a small amount， which not only provides the utilization rate of the metal， butzinc die casting also to reduce the processing equipment， die castings with good resistance to wear resistance， insulation and permeability， so they can instead of part of the assembly and simplify the production process not only saves time but also save the raw metal。

Disadvantage of Die Casting Method

In general， diezinc die casting castings have some stomata， and metal casting cannot heat the production， die-casting method has no effect on concave metal， in addition， it is not suitable for small-volume parts production， due to the high cost of the die-casting and high production efficiency， so small batch production is not economical。 The die casting method is widely applied to the casing industry， now， it is used not only for non-ferrous alloys such as zinc， aluminum， magnesium， copper， and is also used for cast iron and steel casting。 It is widely used in various industries of the national economy， such as weapons， cars， the aerospace and TV computer， agricultural machinery， medical equipment， and so on。

Rubber Parts-Choosing Your Rubber Grommets

Rubber grommets Rubber Partshave a number of versions and each of them are used in several ways in factories as well as in home based equipment of some types。 Each rubber comes with a scale and you will have to decide on this based on what you are going to use it for。 Also， the size of the grommet will depend on the size of the two spaces that you are trying to bring together。

To make the understanding a bit simpler， a grommet can be seen as ring that is put into a hole and through a particular material。 Grommets are flared or come in collared versions for either side， to keep things in place。 They are made of metal or plastic and sometimes also in rubber。 Your choice will depend on the work you need it to do。 The smallest version of grommet is the eyelet that you often see used on your sports shoes。

When you are handling harder material such as metal or the like， holes drilled into them can result in rough edges。 This means that if you are passing through wires or softer material， they can get abraded。 This problem especially exists with electrical insulation。 In such cases the use of rubber grommets or those made purely of plastic or even coated with plastic can be used to cover up the rough edges。 The smooth surface of the grommet is what protects the hole and anything passing through it。

When there is a need to pass wires through a punched sheet of metal， grommets come into play。 There are molded as well as continuous strip grommets that are also known as edge grommets。 They come in a number of shapes and sizes depending on what you are using it for。 You should make your choice of grommets based on your needs。 It is important to get the right experts to evaluate your needs and settle for the right kind of product。

To make the understandingRubber O-Ring a bit simpler， a grommet can be seen as ring that is put into a hole and throughCustom Mold Rubber Parts a particular material。 Grommets are flared or come in collared versions for either side， to keep things in place。 They are made of metal or plastic and sometimes also in rubber。 Your choice will depend on the work you need it to do。 The smallest version of grommet is the eyelet that you often see used on your sports shoes。

When you are handling harder material such as metal or the like， holes drilled into them can result in rough edges。 This means that if you are passing through wires or softer material， they can getRubber Seal abraded。 This problem especially exists with electrical insulation。 In such cases the use of rubber grommets or those made purely of plastic or even coated with plastic can be used to cover up the rough edges。

It is always a good idea to use a single distributor。 It helps you get products delivered on time and you can also be assured of the quality of the products。 Having a long term association with one company will also allow you to get emergency deliveries if they are needed。 Such is the rapport your need to build up in order to grow your business as wellRubber Gasket as the quality of the products you are offering。

Industrial monitor-Technical Advantages Of R4 Networking

Lighthouse TechnFanless pcologies Limited today announced itIndustrial monitor will introduce the R4 LED display screen to the United States market at InfoComm 2006。 The ultra high resolution R4 was designed in response to customers´ needs for a noiseless yet stunning indoor display。

The R4 is the first Lighthouse productsunlight readable to betouch screen monitor fully RoHS (Restrictions on Hazardous Substances) compliant for lead-free products。 TheIndustrial pc R4 will make its first appearance in the US at InfoComm 2006 from June 7 - 10， 2006 in Orlando， Florida， Booth 3579。

"The R4Box PC complements our existing product line，" said Mark Chan， Managing Director for Lighthouse Technologies Limited。 "We are offering our customers a full range of LED video display screensVideo wall from large-pixel outdoor displays to quiet and ultra high resolution indoor LED video display solution。"

With the award-winning M4 uniformity control technology and 14 bit processing technology， the ultra highIP66 resolution R4 delivers stunning images。

The R4´s fanless design makes it the best choice for television studios， board and meeting rooms， houses of worship， corporate lobbies， museums or anywhere requiring minimal noise。 Its noise level is far below audible noise levels that can interfere with microphonesAll in one computer or normal conversations in a meeting room， or at quiet performances such as a solo performer or in a venue with a cozy audience where a noisy compressor would be an unwanted interruption。

The R4 is cooled by natural convection， supported by attached heat sinks for additional cooling。 A major contributing factor to the low heat generation of the R4 is the use of the very bright 3-in-I surface mounted LEDs package that run at lower power。

The R4´s seamless mechanical cabinetpanel PC system with interlocking king-pin connectors and the integrated control system provide for quick， trouble-free assembly under the most challenging set-up conditions， yet it isdigital signage rugged enough for the rigorous demands。

sintered metal-Tips For Powder Coating

Powder coating ipowder metals the youngest of the surface finishing techniques that is still in use today。 It was first used in 1967 in Australia by Allan Davies。
s the simple technique of applying dry paint to a part such as metal or plastic， and after the final coating is the same as a finished 2-coat wet paint job。 Powder coating can be applied in two ways；powder metal either by lowering an item into a bed of powder which may or may not be electrically charged， or the powder paint is electrically charged and sprayed onto the part。 After being coating with dry paint， the part is placed in an oven and the powder particles melt and combine to form a permanent layer of paint。

There are two main types of powder available to use， either the thermoplastic powder which re-melt when heated， and thermosetting powders that will not re-melt when heated。 This is because during the initial heating process a chemical cross-linking reaction is triggered so that the bonds cannot be broken。

The foundation of any high-quality coating job is preparation。 Most powder coating failures are linked to a poor preparation process。 It is important to know that the preparation treatment is different for different materials。

For all applications the preparation treatment for aluminum is to clean， rinse， etch， chromate， rinse and denim rinse。 Oils and greases can be removed by weak alkali or neutral detergent solutions and the surface is etched to remove heavy oxides。 After rinsing， the aluminum is dipped into a chromate or phosphate solution to form a adaptation coating。 After rinsing the aluminum it is rinsed in de-mineralized water which gets rid of chemical salts on the aluminums surface。 This process has two functions which include giving the aluminum a surface which is better for adhesion and protects the aluminum from under the paint corrosion。

If yousintered metal are preparing a steel part， the steps you take to prepare your part are as follows: clean， rinse， etch， rinse， grain refine， zinc phosphate， rinse and acidulated rinse。 The grain refiner is used after acid cleaning of steel surfaces and before zinc phosphate， because otherwise the zinc phosphate coatings produced will be very coarse and have a low adhesion ability。 The etch is required to remove the zinc corrosion products which begin to form almost immediately the zinc is removed from thesintered metal galvanizing kettle。 The grain refiner ensures a fine phosphate is produced。