SILRAM-COR סילרם-קור

SILRAM COR - SUPPLIERS

2008-12-27T21:17:00.000-08:00

what is a Heat Pipe?

2008-12-20T07:22:00.000-08:00

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Rugged Laptop Heat Pipe Description

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cpu coolers

2008-11-26T03:56:00.000-08:00

HEAT SINKS

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Pad For Vacuum

2008-11-05T01:38:00.000-08:00

How to Handle Softtherm

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Our Products

2008-10-28T03:02:00.000-07:00

FAN ACCESSORIES
HEAT SINKS
THERMAL PADS
HEAT PIPES
THERMO ELECTRIC
HEATING FOILS
CPU COOLERS
DC MOTORS

Copper heat sinks vs. Aluminum heat sinks

2008-10-05T07:13:00.000-07:00

In such cases where high power components has to be cooled within a limited space copper heat sinks are considered as a substitute to Aluminum ones.

The change is justified when the footprint area of the component is substantially smaller than that of the foot print area of the heat sink base.

This change is associated with an increased cost of a factor of 2 as copper can not be extruded or easily stamped. Weight is increased by a factor of 3 and thermal resistance is reduced by a factor much smaller than 2.

This means that the increase in weight and cost when using copper heat sink is justified only in marginal cases where the relatively small reduction in thermal resistance justifies the large increase in weight and cost

Alpha corp. from Japan is manufacturing a hybrid heat sink with a copper plate metalurgically embedded in the aluminum base, thus improving the heat spreading in the base and the fins temperature near the edges, while the fins and the upper section of the base attached thereto are made from aluminum.
Example of such improvement in performance (reduction of thermal resistance) can be noticed when comparing geometrically identical heat sinks one with aluminum base and the other with partially aluminum base with embedded copper therein as in the following links.

http://www.alphanovatech.com/cat_ube.html; http://www.alphanovatech.com/cat_ubce.html

Coolinnovations corp. from Canada supplies whole copper heat sinks which are limited in footprint dimensions. Similar comparison between copper and aluminum can be made in coolinnovations web-site. www.coolinnovations.com.

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2008-09-22T07:27:00.000-07:00

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2008-09-22T07:26:00.002-07:00

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2008-09-22T07:26:00.001-07:00

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2008-09-22T07:25:00.001-07:00

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2008-09-22T07:23:00.000-07:00

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2008-09-18T05:18:00.003-07:00

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2008-09-18T05:18:00.002-07:00

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2008-09-18T05:18:00.001-07:00

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2008-09-18T05:18:00.000-07:00

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2008-09-15T03:22:00.000-07:00

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2008-09-15T03:14:00.000-07:00

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2008-09-15T03:12:00.000-07:00

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2008-09-15T02:26:00.001-07:00

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SILRAM-COR LINE CARD 2

2008-09-09T06:10:00.000-07:00

Heat sinks and CPU Coolers

Alpha Japan AlpaNovatech
Coolinnovations
LDS
R-theta

Maximal Temperature Measurement Labels

Hallcrest

Thermo Electric Modules and their controllers

Ferrotec

Chillers and Cold Plates

CustomChill
Ferrotec
LDS

Heating foils

Caliente

SILRAM-COR is handling all thermal management products and activities.

Office address: 10 Yad Harutzim
Kfar-Saba
Tel: +972-9-7654000
Fax: +972-9-7658000
E-mail: sales@silram-cor.co.il

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SILRAM-COR LINE CARD

2008-09-09T05:54:00.000-07:00

Fans & Accessories

NMB FANS
T&T Grand Land International Ltd.
Pelko Motors
Fandis

Flexible Heat Conductors

Alfatec - Kerafol
Laird-Technologies
T-global

Heat Pipes

Thermacore
Thermshield

SILRAM-COR is handling all thermal management products and activities.

Office address: 10 Yad Harutzim
Kfar-Saba
Tel: +972-9-7654000
Fax: +972-9-7658000
E-mail: sales@silram-cor.co.il

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Forced Convection Heaters - Caliente Silram-Cor סילרם-קור

2008-09-08T05:36:00.000-07:00

Forced Convection Heaters - Caliente Silram-Cor סילרם-קור
Benefits:

Self Regulating PTC Technology
Versatility
Ease of Installation
Compact Design
Overall Value

Call now:
Phone: 972-9-7654000
Silram-Cor

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SILRAM COR - SUPPLIERS

2008-09-04T06:45:00.000-07:00

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heat pipes

2008-09-04T06:07:00.000-07:00

Heat-pipe or thermal-pipe is a device which is capable of long distances heat transfer at very low temperature losses.

The heat pipe is composed of a tube the internal envelope thereof is covered by a thin layer of porous wick which enable water to flow capillary in the wick from one end of the heat pipe to the other end.

The wick is saturated with water after which the heat pipe is sealed under vacuum which keep the heat pipe internally at a pressure much below the atmospheric pressure.

When a section of the heat pipe, referred to as the evaporator, is warmed up, such as by a hot component, the water within the wick under the low pressure evaporate at low temperature absorbing the evaporating heat from the component.

The vapor is flowing quickly to the cold end(s) and warms them up where the heat is removed from the vapor in the cold ends for example by an air cooled heat sink or water cooled cold plate. The removal of heat condense back the vapor into water in the condenser section.

Due to the capillary pressure existing between the saturated condenser and the dry evaporator the water will flow capillary back to the evaporator where they will be evaporated again and flow back to the condenser as vapor.

The main temperature drop is at the condenser and evaporator sections while the flow of the vapor along the heat-pipe is causing very little temperature drop in the range of 1 degrees regardless the length of the heat-pipe.

Heat pipes are used to transfer heat from a place where there is no possibility and means to remove it to a place where the heat can be removed. Another common use of heat pipes to turn the base of heat sinks isothermals such as the base of a large heat sinks with concentrated heat source which increase the heat dissipation capacity of the heat sink without the need of changing its dimensions or increasing the air flow pattern in-between the fins

SILENT FANS - SILRAM-COR

2008-09-04T05:42:00.000-07:00

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