線絲預熱

ProTHERMICTM PH300 系列預熱器

PH300 Series - front view

產品特點

 

  • 可用于擠塑之前預熱銅,銅包覆和鋁的實心線和絞線。預熱溫度可達到200攝氏度(高溫(-HT)機型預熱溫度可達到300攝氏度)。
  • 可改善線芯與絕緣的粘著和剝線性能,特別在高生產速度情況下。
  • 都安裝在堅固的外殼內,可耐惡劣的工業環境。
  • 基于菜單的LCD顯示屏,用戶友好控制界面。
  • 可以配置各種工業標準的通訊接口。
  • 可選擇不同的機型用于不同線直徑的范圍。
  • 可選擇不同的輸出功率用于不同的預算和生產速度。
  • 可選擇200,400或480伏的三相交流電源型號。

其他信息:

系列小冊
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Performance Tables >

尺寸圖
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ProTHERMICTM PH300 系列預熱器

Operating principle

PH-Operating-PrincipleThe preheater is built around a large transformer and a pair of freely rotating pulleys.

The wire is looped around the two pulleys and through the core of the transformer. The wire entry/exit pulley is electrically conducting and thus short-circuits the wire loop to form a single secondary turn for the transformer. Electrical power delivered to the transformer primary is transformed in to a large induced current in the wire which causes rapid and concentrated heating of the wire.

Technology

The shorting pulley rim is manufactured from a?special copper alloy that has high electrical conductivity and good wear resistance.

The insulating pulley is manufactured from resin bonded fabric which has good wear resistance and low thermal conductivity to minimise wire-to-pulley heat loss.

The pulleys are mounted on low friction, double row ball bearings to minimise the drag force (tension increase) on the wire as it passes through the preheater. Both pulleys are precision machined to ensure that uniform tension is applied to the wire, thus reducing SRL problems in data and telecommunications cable applications.

The preheater is powered from a 3-phase mains input, which is converted to a high-frequency supply by a specially designed inverter, the output of which is automatically adjusted to deliver the necessary power to maintain the required “Preset Temperature” regardless of wire size or production speed.

The preheater is fully protected against mains supply phase loss or brownouts.

Specifications

Model PH300-
10-200
12-400
12-480
20-400
20-480
25-400
25-480
31-480
Maximum output power / kW1012122020252531
Power supply voltage / VAC (3-phase line-to-line rms)200400480400480400480480
Specification
Minimum
Typical
Maximum
Units
Pulley root diameter294mm
Solid wire diameter0.53mm
Stranded wire diameter3.2mm
Stranded wire cross-sectional area8mm2
Wire preheat temperature200°C
Continuous wire tension530N
Wire tension increase (at a line speed of 1500m/min)1N
Power supply frequency4765Hz
Wire line height98010001020mm
Weight360kg
Operating temperature545°C
Ingress protection (wire entry/exit areas and pulley compartment only)IP53-
Wire directionBidirectional
Wire materialCopper / Copper-clad / Aluminium / Special

Standard Interfaces

4x Logic inputsFunctionSolenoid door lock (if fitted)Emergency stop
Start preheatingStop preheating
Maximum input voltage+24V
4x Isolated relay outputsFunctionFaultState
AuxiliaryEmergency stop
Maximum contact rating50VDC / 30VAC / 0.5A
Temperature set input0 to +10V temperature control input, user scalable
Communications interfacesRS-232*
*An optional RS-232-to-USB converter cable is available for connection to USB equipped computers.

Options

(must be specified for installation at time of manufacture; cannot be retrofitted)

Wire loop current output0 to +10 V output proportional to 0 to 2000A(rms) wire loop current
Communications interfacesPROFIBUS
Solendoid door lockLocks the access door(s) shut until motion of the pulleys has come to a complete stop.
Height plinthRaises the nominal line height to 43" (1092mm).
Twin doorsFor use in confined factory spaces where the standard single door is too large (not applicable to PH160, PH450 or PH600)

 

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