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單頭電熱管短路原因分析

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加熱管|單頭電熱管|引線|電極|結構

加熱管|單頭電熱管|引線|電極|結構

小直徑一端出線加熱管(單頭電熱管),總發現二引出線之間出現短路、斷線問題、加熱管電極開路等問題的出現,目前由于設備對加熱管小體積和高能量要求的不斷提高,很多生產商盲目的選材和生產,造成加熱管的質量品質下降,問題頻繁的發生。很多人,問題產生了,并不去分析、查找問題所在,就輕易去下結論,懷疑電熱管繞絲的氧化鎂芯桿的質量有問題。讓制造氧化鎂芯桿的廠家把原來含鎂量為95%的氧化鎂改為98%甚至99%的純度,以提高二引出線不產生短路的概率,然而事實并非如此。

那么造成單頭電熱管短路、開路的原因是什么呢?
1、穿引出線的二孔的距離實在太近,造成單頭電熱管短路。
2、電熱管發熱區的位置已移向引出線端口處,且暴露在空氣中。
3、過高的溫度,與二引出線的額定電壓造成短路的充分必要條件。
4、在使用時模具孔的孔徑口處呈喇叭型,這是由于模塊鉆孔工藝的缺陷,影響導熱。
5、彈頭電熱管管口在引出線的端部出現粉松現象,從而影響導熱及空氣擊穿,造成單頭電熱管短路。
6、劣質的封口硅膠與引出線根部的第一圈螺絲距離實在太近,這時制作工藝產生。
7、用鐵鉻鋁作為引出線的過大電阻率以增加電熱管引出線的溫度而出現事故。

在單頭電熱管的設計、生產過程中,加熱管的電阻值大小,決定了加熱器的功率值,國標明確規定電熱管功率誤差范圍及電熱管電阻值誤差范圍,下面文章我將舉例介紹如何計算1支鋁質加熱管 的電阻范圍值,在什么電阻范圍內的加熱管才符合相關標準。

The small diameter end of line heating tube (single head electric heat pipe單頭電熱管), always found two lead short-circuit, open-circuit disconnection, problems such as line between appearance, due to small volume and improve equipment with high energy requirements for heating pipe, many manufacturers blind material and production, resulting in the decline of the quality of the heating pipe, frequent problems. A lot of people, problems have arisen, not to analyze, find the problem, easy to conclude that electric heating tube, magnesium oxide core rod winding silk quality problems. Making magnesium oxide core rod manufacturers of the original magnesium content is 95% of magnesium oxide to 98% or even 99% of the purity, in order to improve the two pinout does not produce short circuit probability, but the fact is not true.
So the cause of electric short circuit單頭電熱管短路, open circuit is what?
Two hole 1, wear pinout the distance is too close.
2, the position of fever has moved to the outgoing line port, and exposed in the air.
3, the high temperature caused by short circuit, the necessary and sufficient conditions of rated voltage two lead-out wire.
4, the mold in the use of holes in a horn mouth aperture, this is due to defects in the drilling process module, thermal effect.
5, pipe in mouth end pinout appear powder loose phenomenon, thus affecting the heat conduction and breakdown in air.
Sealing silica gel 6, inferior and lead wire of the root first ring screw distance is too close, then the production process.
7, with iron chromium aluminum as excessive resistivity leads to increase the temperature of the lead wire and the emergence of accident.
In the design, single head heating tube production process, resistance heating pipe size, determines the power of a heater, GB stipulates, electric heating tube power error range and an electric heating pipe resistance error range, the following article I will introduce how to calculate the 1 aluminum heating pipe resistance range value, heating in what resistance within the tube is in conformity with the relevant standards.

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女人阴性道图片真人18