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ceramic fibre blanket - China Manufacturer
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This technology is applicable to the crucible type furnace. Electrode salt bath furnace used for tempering, refer to the "quenching salt bath furnace operation technology".
An o pen blast furnace to prepare
(1) the operator to wear protective equipment.
(2) Check the power supply, temperature instruments, safety equipment (such as ventilation, fire) and heat treatment auxiliary equipment (eg cranes,
Presses) is intact (check the electrical safety ground), press the division of responsibility system troubleshooting.horizontal tube furnace
Two ovens! New buildings lining the salt bath furnace shall comply with the oven procedures, generally less than 50 ° C / h the speed of warming. From low to high temperatures in phases insulation oven.
3 furnace
(1) Add to the preparation of good salt, low nitrate (450 ° C the following work) and high temperature nitrate formula may not mix (with reference to the bath furnace salt Preparation and deoxy technology).
(2) Turn on the electric power, until the salt melted, insert the thermocouple, con nected to the power of regulating instrument, the control point (temperature) to process the required temperature (the temperature results Amendment). Connected fan power supply, so that the electric furnace and continuous temperature reaches its operating temperature.
(3) on a regular basis to measure the actual temperature in the furnace and the furnace temperature distribution (refer to the resistance furnace temperature management approach ").
(4) nitrate bath temperature not exceeding 560 ℃.laboratory furnace
(5) salt bath temperature should be below the oil flash point of 20-30 ° C.
4 work
(1) surface should maintain an appropriate height to prevent the workpiece is loaded after the overflow.
(2) stove, baked slowly to prevent spills.
(3) into the bath furnace of the workpiece and fixture, and must be dried to prevent the molten salt or oil spills.
(4) charcoal, oil and other organic matter into the nitrate bath to prevent severe burning and explosion is strictly prohibited.
(5) to maintain the furnace surface, the cleanliness and the roads open to the furnace surface with a damp cloth to scrub, but not flush with water.
(6) periodic removal of sediment and clear the surface of the dirt in the bottom of the crucible.
5 shutdown
(1) cut off the power, remove the thermocouple (salt bath and short-term shutdown salt bath from time to remove).
(2) regularly crucible hanging out, check it for leaks, check the furnace surface nitrate residue materials along the crucible
The outer wall flow to the heating element on the phenomenon, identify problems in time to take measures to exclude.
