鋁棒在進(jìn)入擠出機(jī)前要預(yù)熱。傳統(tǒng)觀念,也許㊣酒吧必須在爐內(nèi)加熱固溶溫度、鋁卷但經(jīng)驗表明,現(xiàn)在還不確定。鋁棒預(yù)熱器無需達(dá)到固溶溫度，只要鋁棒正確澆注均勻即可。
　　Aluminum rods should be preheated before entering the extruder. Traditionally, bars may have to heat solution temperatures and aluminium coils in ovens, but experience has shown that it is not yet certain. Aluminum rod preheater does not need to reach solution temperature, as long as the aluminium rod is properly poured uniformly.
　　鋁棒在進(jìn)入擠出機(jī)前要預(yù)熱。傳統(tǒng)的想法,也許,爐內(nèi)的酒吧必須加熱到固溶溫度、Ⅻ但經(jīng)驗表明,現(xiàn)在還不確定。只要棒材澆鑄正確、均勻化，棒材預(yù)熱器中不需要達(dá)到固溶溫度。在現(xiàn)代鋁擠壓設(shè)備中，@鋁棒爐的唯一目的是軟化金屬。如果金屬加熱不足以銷售鋁盤管，鋁盤管的銷售計算公式將無法順利通過模具。如果鋁棒被加熱到過熱，擠出速度必須非常低。
　　Aluminum rods should be preheated before entering the extruder. Traditionally, bars in ovens may have to be heated to solid solution temperatures and_, but experience has shown that it is not yet certain. As long as the bar is cast correctly and evenly, the solution temperature in the bar preheater does not need to be reached. In modern aluminium extrusion equipment, the sole purpose of @aluminium bar furnace is to soften metals. If the metal heating is not enough to sell the aluminum coil, the sales calculation formula of the aluminum coil will not pass through the die smoothly. If the aluminium rod is heated to overheat, the extrusion speed must be very low.
　　鋁棒預(yù)熱區(qū)溫度測量的典型問題有:
　　Typical problems of temperature measurement in aluminium bar preheating zone are as follows:
　　1.兩點熱電偶讀數(shù)會很低
　　1. Two-point thermocouple readings will be very low
　　2.兩點熱電偶的日常維護(hù)經(jīng)常被忽略
　　2. Daily maintenance of two-point thermocouples is often neglected.
　　3.均勻化熱處理溫度是鋁棒的關(guān)鍵參數(shù)
　　3. Homogenization heat treatment temperature is the key parameter of aluminium bar

　　4.操作人員容易使鋁棒過熱
　　4. Operators can easily overheat aluminium rods.
　　5.操作者傾向于通過降低擠出速度來微調(diào)鋁棒在擠出過程中的溫度變化
　　5. Operators tend to fine-tune the temperature change of aluminium rods during extrusion by reducing extrusion speed.
　　6.過熱和緩慢擠壓浪費預(yù)熱能源
　　6. Overheating and Slow Extrusion Waste Preheating Energy
　　鋁棒應(yīng)加熱到可擠出的低溫度，鋁卷的銷售規(guī)格也必須確保擠出機(jī)出口溫度達(dá)到目標(biāo)值。通過降低鋁棒的預(yù)熱溫度，可以提高擠壓速度，如何提高鋁量的銷售價格，使加熱爐的能耗降低。實踐證明，經(jīng)濟(jì)數(shù)據(jù)表明，這樣的改造可以節(jié)約燃?xì)饧訜釥t15-20%的能源消耗。
　　Aluminum bars should be heated to the lowest extrudable temperature, and the sales specifications of aluminium coils must ensure that the extruder outlet temperature reaches the target value. By reducing the preheating temperature of aluminium rod, the extrusion speed can be increased, and how to increase the selling price of aluminium quantity can reduce the energy consumption of heating furnace. Practice has proved that the economic data show that this transformation can save 15-20% of the energy consumption of gas heating furnace.
　　對于廉價進(jìn)口燃?xì)饧訜崞?，采用兩點熱電偶測量鋁棒間隔溫度。因為這種儀器維護(hù)要求高,Ⅴ使用這種儀器本身的優(yōu)點,還是非常昂貴的維護(hù)鋁卷銷售、鋁卷銷售測試報告或失去準(zhǔn)確性。一些鋁擠壓廠已經(jīng)開始使用非接觸傳感器來檢測和控制鋁棒加熱段的溫度。不僅減少了依賴聯(lián)系熱電偶溫度計,⒇,減少了維護(hù)問題由于儀器本身的局限性和準(zhǔn)確性。
　　For cheap imported gas heater, two-point thermocouple is used to measure the interval temperature of aluminium rod. Because of the high maintenance requirements of this instrument, V uses the advantages of this instrument itself, or very expensive maintenance of the sales of aluminium coil, aluminium coil sales test report or loss of accuracy. Some aluminium extrusion plants have begun to use non-contact sensors to detect and control the temperature of the heating section of aluminium bars. It not only reduces the dependence on the thermocouple thermometer, _, but also reduces the maintenance problems due to the limitations and accuracy of the instrument itself.
　　在感應(yīng)加熱爐系統(tǒng)中，紅外溫度傳感器直接對準(zhǔn)鋁棒表面的直銷力，vii可以直接了解溫度“產(chǎn)生頂進(jìn)”，從而減少兩點熱電偶使用中的不一致性。同樣,為燃?xì)鉄崴?傳感器可以安裝在爐出口(擠壓管入口)理解鋁棒的表面溫度,Ⅱ也用于正確的爐內(nèi)的溫度熱電偶或紅外測溫儀溫度偏差。鋁棒溫度測量部分酒吧是理想的位置,Ⅵ檢查均熱段溫度。測量側(cè)面的溫度也因為這一面會先接觸模具。
　　In the induction heating furnace system, the infrared temperature sensor directly aligns with the direct force on the surface of the aluminium rod, VII can directly understand the temperature "jacking", thus reducing the inconsistency in the use of the two-point thermocouple. Similarly, for gas water heaters, sensors can be installed at the furnace outlet (extrusion tube inlet) to understand the surface temperature of aluminium rods. II is also used for correct temperature deviation of thermocouples or infrared thermometers in the furnace. Aluminum bar temperature measurement part of the bar is the ideal location, VI check the soaking section temperature. The temperature of the side is also measured because this side will contact the die first.
　　對于梯度加熱鋁棒，可以在鋁棒輸送帶的一側(cè)安裝一個傳感器來了解鋁盤管的銷售溫度，也可以安裝兩個傳感器來測量鋁棒的兩段溫度。準(zhǔn)確的梯度加熱溫度對鋁棒連續(xù)進(jìn)入擠出機(jī)至關(guān)重要。不準(zhǔn)確的溫度測量會使梯度加熱失去意義。
　　For gradient heated aluminium rods, a sensor can be installed on one side of the aluminium rod conveyor belt to understand the sales temperature of the aluminium coil, and two sensors can be installed to measure the temperature of the two sections of the aluminium rod. Accurate gradient heating temperature is essential for continuous entry of aluminium rods into the extruder. Incorrect temperature measurements can make gradient heating meaningless.
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