Beryllium Copper Finger Strips,EMI Products,EMI shielding material

Thursday, October 9, 2008

Beryllium Copper Finger Strips,EMI Products,EMI shielding material

We can supply BeCu finger strip gasket
Here are brief introduction of our company:
our company is a high-tech enterprise majoring in the research and development of soft electromagnetic shielding materials.Mainly products are shielding gasket,shielding fabrics,shielding foam ,shielding tapes,etc.
Finger gasket is made of complete metal material and has the lowest electric resistance for EMI shielding.
The raw material, beryllium copper has great stability itself.
Finger gasket is produced by own special manufacturing method.
All kinds of size and shapes are available.

Samjiefu@gmail.com

Look forward to hearing from you soon.

Best regards,

Sam Xu
Contact me:
MSN: xubiao_1996@hotmail.com
GMAIL: samjiefu@gmail.com
SKPYE:jiefu1996

Beryllium Copper Finger Strips and Industrial Enclosure Shielding

BeCu EMI Gaskets

Modern electronic equipment often requires EMI Gaskets to avoid radiating EMI/RFI and to prevent susceptibility to outside sources of EMI/RFI. EMI Gaskets designed and manufactured utilizing the strengths of beryllium copper (BeCu) are the industry standard throughout the world. Starting with the emergence of RFI problems in the early days of military electronics, BeCu EMI Gaskets have been the choice solution.

BeCu EMI Gaskets do two things very well:

Their mechanical spring characteristics far surpass all other gaskets in the industry.
They offer the highest EMI shielding effectiveness.

CGC has been designing and manufacturing BeCu EMI Gaskets since the early days of the computer and electronics industries. WE combine these years of manufacturing and EMI experience with one key ingredient -- the needs of the customer.

Our innovative EMI Gasket designs are a direct result of out experience and customer input. Our new CompactPCI line of EMI Gaskets is an example of a design that was driven by the needs of a customer and evolved into a line of gaskets that meet all the requirements for CompactPCI faceplate standards while providing superior mechanical and shielding performance.

CGC offers many standard off-the-shelf EMI Gaskets as well as the engineering and custom manufacturing experience to help you solve your application. Whether you need one prototype or a large quantity order, our Team at CGCis available to respond to your needs.

We can supply any quantity and any kind of Copper Beryllium Finger Strips and Industrial Enclosure Shielding from stock.would you please inform us how many you need and your target price, then we will confirm ASAP. We are sincerely hope to do business with you and establish long term business relationship with your respectable company.

Look forward to hearing from you soon.

Best regards,

Sam Xu
Contact me:
MSN: xubiao_1996@hotmail.com
GMAIL: samjiefu@gmail.com
SKPYE:jiefu1996

Beryllium Copper Finger Strips and Industrial Enclosure Shielding

Beryllium Copper Finger Stock

GENERAL INFORMATION East Coast Shielding offers the most complete line of standard EMI shielding strips in the industry. These RoHS compliant shielding strips are designed for a wide variety of application requirements. They are available in strips ranging from 16 to 24 inches in length, in continuous coils up to 35 feet long, as single fingers, or cut to requested full-fingerlengths. Uncompressed heights of standard finger stock range from .03" to .44", which will occupy gaps as low as .01". Many gaskets are offered in two material thicknesses to meet diverse application compression requirements: "Standard" and "TF", which requires less force to compress the gasket to its operating range.

BERYLLIUM COPPER EMI SHIELDING PRODUCTS

• Finger Stock
• "D" Connector Gaskets
• Contact Rings

STAINLESS STEEL EMI SHIELDING PRODUCTS

• Finger Stock
• "D" Connector Gaskets
• Expansion Slot

EMI Shielding Performance
Material	H-Field - 100kHz	E-Field - 10MHz	P-Field - 1GHz
BeCu	>110 dB	>110 dB	<110>
Note: Plating the mating surfaces with the same material will provide superior performance. Chromate chemical film on aluminum maintains surface conductivity by reducing corrosion.

ELECTROMAGNETIC COMPATIBILITY
EMI/RFI Shielding Products are designed to either keep out or keep in electromagnetic interference. Shielding reflects and absorbs incident radiation. The higher the attenuation of the shielding, the more effective it is at keeping in or out the undesired electromagnetic interference.

AVAILABLE FINISHES

FINISH	RoHS COMPLIANT
Solderable	No
Clean and Bright	Yes
Gold	Yes
Silver	Yes
Cadmium/Clear Chromate	No
Tin Lead	No
Bright Tin	Yes
Nickel	Yes
Zinc/Clear Chromate	Yes
Electroless Nickel	Yes

RFI-EMI beryllium copper shielding gaskets

	Copper alloy shielding gaskets are the standard to which all other gasket materials are compared. In particular, beryllium copper base metals offer a combination of the greatest electrical conductivity, highest resistance to stress relaxation and the resultant attenuation properties in excess of 110 dB up to 1 GHz. In addition, they provide an opportunity to electroplate the surface for a most exacting galvanic compatibility when situations require. FerriShield’s two surface finishes, bright copper and tin plated, are standard for all parts – providing compatibility through the entire cathodic-anodic electrochemical potential scale for the common electronic enclosure base metals and finishes. Our standard selection of parts accommodates a wide range of gap sizes from .004” to .500” (0,10 to 12,7 mm) in easy mounting adhesive and clip-on styles.



	HIGH DEFLECTION D-SHAPE WITH ADHESIVE MOUNT. Ideal for enclosure cabinet doors, or where great variations in mounting surfaces occur. Functional in a wide variety of applications, this series combines high dynamic range, very low compression force and long service life after repeated compressions. Installs easily with standard Very High Bond adhesive by peeling away the protective paper liner.



	HIGH DEFLECTION D-SHAPE, FOLD-OVER WITH ADHESIVE MOUNT. A variation of the series shown above, these designs incorporate a “fold-over” extension on the base which protects the upper part of the contact in the relaxed position and as it slides into the compressed position. Very useful in high traffic areas. Installs easily with standard Very High Bond adhesive by peeling away the protective paper liner.



	HIGH DEFLECTION NO-SNAG, FOLD-UNDER WITH ADHESIVE MOUNT. For applications requiring low compression force. Designed with a minimum residual stress and highly leveraged spring action. The free end features a fold-under lip which facilitates a low coefficient of friction on most surfaces. Allows a minimum of compressive force to move through the deflection range, resulting in the highest levels of shielding effectiveness with a minimum force. Extremely high endurance life. Installs easily with standard Very High Bond adhesive.


	All dimensions in inches millimeters ±1.6%, or ±0.005" 0,13 mm minimum

Beryllium Copper Finger Strips

Finger strip gasket or (spring) finger contact strip are usually manufactured from beryllium copper foil. Gasket profiles are resilient / compliant and can provide very low contact resistance between mating faces providing excellent EMI shielding performance. Profiles are available that are capable of coping with comparatively large variations in seam (gap) width. Very low closure force sections fabricated from light gauge foil are available.

One key benefit of finger strip is that ‘D’ or curved profiles may be used in applications where there is a wiping or shear action on the gasket e.g. sliding door.

Various plated finishes are available (e.g. tin, zinc, nickel) that can improve electrical contact properties, corrosion resistance, or improve wear characteristics.

Most sections are based around a ‘D’ profile. There are multiple variants in terms of size (profile height), design features, and mounting methods. Most commonly these include, self adhesive, clip on, rivet mount, slot mount or solder in place.

Design considerations/features

Finger strip sections are generally only suitable for indoor or controlled environments unless used inboard of suitable environmental protection.

As most sections are rivet mount or ‘clip on’ they lend themselves to efficient assembly on most sheet metalwork enclosures

They offer potentially very high shielding performance particularly if used in knife edge / channel configuration

Ideally suited for application where covers, doors etc are repeatedly opened and closed, particularly if there is a shearing or wiping action applied. This effect is useful as it ensures that contact faces are maintained in a clean condition

Sections exhibit excellent recovery – very low compression set

Be careful not to mount finger some strip sections in locations where it might be vulnerable to damage. For example, surface mounted fingers can be ‘snagged’ by clothing in doorways or access hatches

Applications

Typically used on 19” rack assemblies, communications cabinets, high performance screened enclosures

Single fingers or strip sections can be used for grounding or connection points

We can supply any quantity and any kind of Copper Beryllium Finger Strips and Industrial Enclosure Shielding from stock.would you please inform us how many you need and your target price, then we will confirm ASAP. We are sincerely hope to do business with you and establish long term business relationship with your respectable company.

Look forward to hearing from you soon.

Best regards,

Sam Xu
Contact me:
MSN: xubiao_1996@hotmail.com
GMAIL: samjiefu@gmail.com
SKPYE:jiefu1996

Beryllium Copper Finger Strips and Industrial Enclosure Shielding

Tuesday, July 22, 2008

Faster installation for shielding gasket strip

Shielding specialist, TBA Electro Conductive Products now offers a beryllium copper (BeCu) gasket strip for narrow gap applications featuring new "Quick-Release" tape backing for faster installation

Shielding specialist, TBA Electro Conductive Products (ECP) now offers a beryllium copper (BeCu) gasket strip for narrow gap applications featuring new "Quick-Release" tape backing for faster installation Offering up to 100dB attenuation, ECP 630 Quick Release is a low profile gasket with just 1.52mm profile height making it ideal for use in the increasing number of applications where narrow gaps from 0.5mm require closing

The durable BeCu gasket features 360 "no-snag" fingers and is smooth to the touch making it suitable for bi-directional applications.

The gaskets also offer low closure forces from 8 to 30kg/m for 25 to 50% compression respectively and feature a leading edge that hooks over the module frame for full protection.

Installation is simplicity itself.

The leading edge of the gasket is hooked over the mounting flange and the opposing side is then attached by removing the backing sheet from the double sided pressure sensitive transfer tape which secures the gasket in position.

Material thickness is 0.05mm as standard and fingers are 2.54mm wide and 7.1mm long on 3.18mm pitch.

Strips are available up to 406mm long.

TBA's ECP 630 Quick Release gaskets are complemented by the company's extensive range of EMI shielding finger strip products.

These include clip-on, stick-on, snap-on and special mounting styles, each available with various plating options from clean and bright through gold and silver to zinc/clear chromate and electroless nickel.

TBA Electro Conductive Products is a specialist manufacturer of high quality electro static protection (ESP) and electro magnetic interference (EMI) shielding products.

The EMI shielding range includes an extensive portfolio of gaskets and gasketing materials, metal foil tapes, shielded windows and mesh products, vent panels and shielded fan vents.

EMI shielding gaskets resist rough use

A new option for the ECP 400 series of soft gaskets protects against tears in the conductive fabric coating.

A new option for the ECP 400 series of soft gaskets protects against tears in the conductive fabric coating The new ECP 400 Ripstop series features a specially enhanced conductive fabric that is designed to prevent fabric tears making it ideal for use in applications where doors, panels and apertures are subjected to frequent opening and closing

ECP 400 Ripstop series soft EMI shielding gaskets comprise a conductive fabric bonded over a soft nonwicking polyurethane closed cell foam.

The gaskets are ideal for shielding applications where high performance levels over a wide frequency range are required and particularly where low closure forces combine with a requirement for good environmental sealing.

All gaskets feature a self-adhesive strip to aid location and mounting.

A wide range of standard profiles is available cropped to any length up to 2m encompassing rectangular, flat, square, D-shaped, V-section, clip-on D-shaped, knife-edge, P-shaped, U-shaped, L- or J-shaped, keyhole and circular.

In addition to standard shapes, TBA ECP can provide custom designs with virtually no limitation to the design of the gasket profile and incorporating full or partial wrap of the conductive fabric.

Tailor made die cut shapes in widths up to 150mm can be produced.

Various finishes are available including nickel/copper (Ni/Cu) plated as standard and gold plated for higher attenuation.

Typical specifications for polyurethane foam include UL94V0 flammability rating and 6% maximum compression set.

The conductive fabric is woven polyester (nonwoven option available) and surface resistivity is 0.05ohm/square.

Offering excellent abrasion resistance, overall shielding effectiveness is 68 to 88dB from 30MHz to 1GHz with a temperature limit of 200C.

TBA's ECP 400 Ripstop soft gaskets extend the company's comprehensive line of EMI shielding products that also includes knitted wire mesh gaskets, woven wire sheet, metal foil tapes, oriented wire in silicone rubber, moulded and extruded conducting elastomers, printable EMI shielding elastomers, EMI shielding windows, honeycomb vents, shielded fan vents and quiet vents.

The company also offers an extensive line of beryllium copper and stainless-steel fingerstock for all EMI shielding applications.

Beryllium Copper Finger Strips,EMI Products,EMI shielding material

Products

Thursday, October 9, 2008