Intermediate frequency induction heating copper wire annealing equipment

一、概述：

Intermediate frequency induction heating copper wire (copper tube ) annealing equipment is suitable for on-line annealing of copper wire (brass alloy outer sheath). The penetration depth and hardness are according to the specific requirements of customers to achieve stress removal and softening of the brass alloy. The purpose of the outer sheath.

Equipment introduction The complete set of equipment is designed and manufactured according to the mechatronics structure. Among them, the intermediate frequency power supply is a set of 6- pulse thyristor KGPS200KW/8KHZ intermediate frequency power supply, the load is a set of GTR series induction heating furnace, and the equipment is equipped with a set of reactive power compensation capacitor bank. The device is designed with manual and automatic power adjustment knobs, among which automatic is the temperature closed-loop control mode. The external control console is controlled by PLC (Siemens) and touch screen. The touch screen can easily input heating parameters, such as copper wire specifications, heating speed, annealing temperature, etc. After the parameters are input, the closed loop control system of the intermediate frequency power supply temperature will automatically adjust the output power, thereby Meet production needs. When a certain link in the production fails, the intermediate frequency power supply can be insulated according to the set temperature to avoid overburning the copper wire. The equipment is placed according to user requirements, facing the equipment from left to right, the operating table is placed toward the main equipment, which is conducive to the operator to observe the production situation and facilitate the adjustment of parameters.

Safety protection The equipment has complete safety protection measures, such as water shortage protection, phase lack protection, over current protection, over voltage protection, under voltage protection, high water temperature protection, etc., and there is an audible and visual alarm device for faults. The equipment is configured according to 200KW , leaving enough power margin to ensure continuous and stable production of the equipment for 24 hours. All exposed conductors are installed in the electric control box with a lock, and there are eye-catching safety reminders, so no electrical safety accidents will occur. Each interlocking device can avoid damage to equipment or copper wires due to manual misoperation.

設備結構 整套設備佔地面積約2000*1500mm，中心高1000mm。 電源與加熱爐體為一體，用膨脹螺栓固定。 設備採用外置控制台設計，可根據現場情況隨意佈置，方便操作。 設備的安裝簡單快捷。 用戶只需將進出水管與設備的進出水管連接（進出水口各一個噴嘴），將三相四線接到設備上端即可。

2 , induction heating annealing apparatus copper

技術參數

2 .1 材料技術參數

工件材質：穿地線（內部為銅絞線芯導體，外部用黃銅合金外護套嚴密包覆）

退火方式：在線連續感應加熱

材料規格：φ6-φ13mm，壁厚1mm

2 .2 加熱主要技術要求

初始溫度：20℃；

退火溫度：600℃範圍內可控可調； 黃銅合金層測溫精度±5℃，感應加熱控溫精度±20℃。

加熱深度：2mm；

工藝線速度：30m/min以內（最大線速度不高於30m/min）；

生產線中心高：1m；

2.3 成套設備技術選型

成套設備包括中頻電源控制系統、遠紅外光纖測溫系統、溫度閉環控制系統、無功補償電容器組、感應加熱退火爐體等。

中頻功率控制系統：

2.3.1 中頻電源為晶閘管變頻裝置，輸入電壓為380V，50Hz，輸出功率為200KW。 功率可根據設定溫度手動或自動調節。 輸出頻率為8KHz（自動頻率跟踪）。 櫃體顏色根據用戶要求確定，外形尺寸2000×1500×1300mm，中心高1000mm。

2.3.2 筒式組合矽膠架

晶閘管的整流和逆變部分採用了最新的模塊化組合矽框架，併申請了專利。 這種安裝方式使晶閘管的拆裝更加方便、科學。 更換晶閘管時，只需鬆開擰緊螺栓即可更換組件中的任何晶閘管元件。 而且這種安裝方式充分減小了可控矽元件的體積，不僅增加了電氣櫃內的操作空間，而且大大降低了線路損耗。

2.3.3 大容量直流平滑電抗器

平滑電抗器對於固態電源非常重要，它有兩個作用。 首先，使整流器的輸出電流平滑穩定。 其次，逆變晶閘管短路時，短路電流的增長速度和最大短路電流的大小受到限制。 如果濾波電抗器的參數設計不合理、鐵芯材料不好或製造工藝不夠好，都會對中頻電源的工作可靠性產生很大影響。

2.3.4 大容量可控矽

為保證設備運行的可靠性，整流、逆變晶閘管均採用襄樊站式大容量KP和KK矽，保證設備穩定運行。

2.3.5 採用串並聯補償線路，減少輸電線路損耗

為了減少中頻傳輸線上的損耗，逆變器的補償電容採用串並聯倍壓形式

2.3.6 主電路參數及元器件選型依據

中頻電源主電路的額定參數如下表所示：

The inductor is composed of a furnace shell, an induction coil, a stainless steel water collector and a furnace lining. The induction coil is combined with the parameters of the annealed copper alloy tube to optimize the design with special computer software and make it in combination with actual experience. It can ensure the best electromagnetic coupling efficiency under the same capacity. Induction coils with 99.99% of T2 rectangular copper wire made, the induction coil outer insulating electrostatic spray process the epoxy resin insulating layer of high strength, pressure-resistant insulating layer is greater than 5000V .

The inner layer of the induction coil is made of white corundum lining, and the outside of the lining and between the coils are fixed with refractory cement (American Union Mine), which can play a role in insulation and heat preservation. At the same time, the strength of the white corundum lining is further increased, effectively avoiding copper wire damage to the lining.

所有進出傳感器的水都被收集到兩個不銹鋼集水器中，它們連接到主進水管和出水管。 不銹鋼集水器美觀實用，可有效避免因水管腐蝕、水路堵塞而對感應線圈散熱的影響。