Aluminum sheet for pcb
A layer of aluminum foil sheet is laid down over the board stock to help absorb and distribute heat from the drilling process. After drilling, the PCB panels have the aluminium foil sheet covering removed and are ran through a machine to remove burs and smooth out any other abraisions that may have happened during the drilling process.
According to the different PCB DRILL entry backup materials, the pcb sheet market is usually divided into four categories:
phenolic paper sheet(including phenolic paper cover and cold sheet). coated resin aluminum sheet. (also known as lubrication aluminium sheet). aluminium entry sheet (Ie aluminium entry foil), epoxy glass cloth sheet. Phenolic paper sheet industry less amount. and cold sheet( known as phenolic paper sheet) is used for flexible plate drilling. coated resin aluminum sheet for HDI board. dense BGA, IC board, etc.
Micro-hole drilling and flexible plate drilling. made of resin and aluminum foil; aluminum entry sheet or aluminum entry foil. for ordinary and fine circuit board drilling, made of alloy aluminum foil. epoxy glass cloth cover. by the ring Oxygen resin and fiberglass cloth composition. the current market use very little. Besides, there have been a composite aluminum sheet. from wood pulp (core) and aluminum foil composition, rare, has been out of the market.
With the development of PCB technology, PCB drilling holes are getting smaller. and smaller, more and more holes. drilling technology requirements are getting higher and higher. entry sheet on the drilling quality of the impact is more important. Some high-end or high-tech requirements of the PCB boards. generally use some of the high-end entry sheet. PCB in the market with the entry sheet of the product structure. with the development of PCB technology.
PCB product structure continues to upgrade, and PCB drilling technology upgrade. The selection of drilling materials are in the high block plate. such as lubricating aluminum sheet, cold sheet. phenolic paper pad, melamine wood plate. In particular, high-grade LE sheet, PCB drilling special entry material. HDI (including IC carrier board) with cover, flexible PCB drilling with cold plate. become the market faster varieties.
coated aluminium sheet for PCB advantages
Temper: H 19 extra hard
Elongation: > 3 %
Surface roughness: approx. 3.5 µm
Thickness tolerance: + 0.01 /- 0.02 mm
Excellent heat dissipation of aluminium drill entry sheet cools the drill bit to. reduce the risk of resin build-up in the flutes.
Defined surface roughness combined with excellent flatness designed to benefit drill centring. reduce drill wander and avoid drill breakage.
Excellent burr reduction due to high surface hardness and material stiffness
Protects the circuit board against scratches and pressure foot marks
Thickness options available for different applications
Solid aluminium drill entry can be recycled.
china aluminum drill entry sheet Types
7075 aluminum drill entry sheet
7075 aluminum drill entry sheet are manufacture with strict requirements and advanced technology.
6061 aluminum drill entry sheet
6061 aluminum drill entry sheet is a widely used aluminum drilling entry sheet for PCB. aluminum drill entry sheet spread all over the world.
5754 aluminum drill entry sheet
5754 aluminum drill entry sheet of Haomei aluminum. are with best quality and good service. our product 5754 aluminum drilling entry sheet are famous in the world.
5083 aluminum drill entry sheet
5083 aluminum drill entry sheet also named as 5083 aluminum drilling entry sheet. which are with high quality and advance technology. we want to highlight our product 5083 PCB drill entry sheet to you.
3014 aluminum drill entry sheet
3014 aluminum drill entry sheets manufactured with state-of-the-art equipment which matches international standards. Tight thickness tolerance, flatness, dimensional accuracy and grease-free surface. and hardness optimal for burr-free drilling required in the manufacture of PCB ensured.
aluminum drilling entry sheet
PCB aluminum drilling entry sheets manufactured with state-of-the-art equipment. Tight thickness tolerance, flatness, dimensional accuracy. and grease-free surface and hardness optimal for burr-free drilling required.
aluminum drill entry sheet
Aluminium drill entry sheet manufactured for use with double-sided . and multilayer circuit boards to meet both the performance. and cost requirements for general PCB drilling.
3003 aluminum drill entry sheet
3003 aluminum drilling entry sheet manufactured with advanced technology and machine. Our products’ tolerance, flatness, dimensional, surface, hardness, burr-free match industry standards.
1235 aluminum drill entry sheet
Haomei's 1235 aluminum drilling entry sheet manufactured with international standards. Our products have the advantages of tight thickness tolerance. dimensional accuracy and grease-free surface. and hardness optimal for burr-free drilling required in the manufacture PCB.
1145 aluminum drill entry sheet
1145 aluminum drilling entry sheet manufactured with professional equipment. Tight thickness tolerance, flatness, dimensional accuracy. no grease surface and hardness optimal, burr-free drilling are the features.
1100 aluminum drill entry sheet
1100 aluminum drilling entry sheet have many advantages. such as tight thickness tolerance, flatness, dimensional accuracy. grease-free surface and hardness optimal for burr-free drilling of PCB ensured.
1060 aluminum drill entry sheet
1060 aluminum drill entry sheet manufactured with world famous top equipment. Tight thickness tolerance, flatness, dimensional accuracy . and grease-free surface and hardness optimal. for burr-free drilling required in the manufacture of PCB ensured.
1050 aluminum drill entry sheet
1050 aluminium drill entry sheet manufactured with state-of-the-art equipment. Tight thickness tolerance. flatness, dimensional accuracy and grease-free surface and hardness optimal. for burr-free drilling of PCB ensured.