1, the silicon carbon rod is hard and brittle, easy to fracture by violent vibration and impact. Therefore, take extra care in transportation and handle with care.

2. The length of the hot zone of the silicon rod shall be equal to the width of the furnace. If the heating zone extends into the furnace wall, it is easy to burn and damage the furnace wall.

3. The length of the cold end of the silicon carbon rod should be equal to the thickness of the furnace wall plus the length of the cold end extending out of the furnace wall. Generally, the extension length of the cold end is 50 ~ 150mm in order to cool the cold end and connect the clamp.

4, the inner diameter of the furnace through the silicon carbon rod should be 1.4 ~ 1.6 times the outer diameter of the cold end. The furnace hole is too small or the filling in the hole is too tight, which will hinder the free expansion of the silicon carbon rod at high temperature and lead to the broken rod. The rod should be installed with a free rotation of 360 degrees.

5. The distance between the silicon carbon rod and the heated object and the furnace wall should be greater than or equal to 3 times the diameter of the heating part. The center distance between the silicon carbide rod and the silicon carbide rod should not be less than 4 times the diameter of its hot zone.

6. The cold end of the silicon carbon rod is connected with the main circuit by aluminum braid or aluminum foil. Clamp of cold end should be clamped.

7, new furnace or not used for a long time before the use of electric furnace oven, should use old rod or other heat source oven.

8, silicon carbon rod storage to prevent moisture. Because it is easy to decompose and fall off the aluminum layer at the cold end after being damp, the contact resistance between the cold end and the fixture increases, and the silicon carbon rod is easy to crack after being energized.

9, silicon carbon rod before use to carry out resistance. First, silicon rods with the same or similar resistance are joined together.

10, equipped with pressure regulating device for silicon carbon rod. The initial voltage of power supply is half of its normal working voltage, and then gradually increase the voltage after a period of stability. This prevents the rods from heating up so rapidly that they break.

11, long continuous service life of silicon carbon rod; Short discontinuous service life.

12, the use of silicon carbon rod to choose a reasonable surface load density and use temperature. The operating temperature should not be greater than 1650℃; In the harmful gas environment to prevent the use of silicon carbon rod and harmful gas chemical reaction.

13. When replacing the silicon carbon rod, the silicon carbon rod should be selected and the resistance of the silicon carbon rod running in the furnace is close to that of the silicon carbon rod. If necessary, the whole furnace silicon carbon rod should be replaced, which is conducive to improving the service life of the silicon carbon rod.

14, prevent silicon carbon rod splash on molten metal, splash on molten metal easily lead to broken rod.

15, prevent alkali, alkali earth metal and alkali oxide corrosion silicon carbon rod.

16, often observe the ammeter, voltmeter and temperature meter reading is normal; Whether the cold end fixture is loose, oxidized or blackened; Whether the silicon carbon rod is broken; Whether the red heat of silicon carbon rod is uniform.

Zibo Kunxu High Temperature Material Co., LTD.

Address: No. 88, Liuwa Industrial Park, Zichuan, Zibo, Shandong
Contact person: Manager Sun
Mobile phone：86-18753318063
Phone：86-0533-5550695
FAX：86-0533-5559009
E-mail：[email protected]
WeChat ID：18753318063
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