Oil-fired stoves are suspension-burning stoves that use heavy oil as fuel. It is generally composed of an oil burner, a noise port and a furnace cavity. The main components of an oil burner are the fuel nozzles and the register. The combustion process of oil is actually first atomized into small oil droplets, sprayed into the furnace cavity, and the oil droplets are heated and evaporated and diffused and burned. Martensitic stainless steel quenching vacuum heat treatment processThe intensified combustion process is achieved by intensifying the atomization, evaporation and mixing of oil and gas with air. Oil-fired furnaces produce very little soot, but heavy hydrocarbons or carbon are solids that are difficult to burn and often leave the furnace cavity unfinished, forming thick black smoke. The combustion temperature of oil is generally 1300-1500 ℃, Vacuum Heat Treatment of Hollow Linear Optical Axisand the amount of nitrogen oxides generated is much higher than that of coal-fired furnaces. Most of the sulfur in crude oil is concentrated in heavy oil, and oil-fired furnaces that use heavy oil as fuel should also pay attention to the prevention and control of SO2 pollution.Precision gear vacuum heat treatment

Electric heating heat transfer oil furnace is a new type, safe, high efficiency and energy saving, low pressure (under normal pressure or lower pressure) and can provide high temperature heat energy special industrial furnace Transfer heat to heat-using equipment. The electric heating heat transfer oil system is composed of explosion-proof electric heater, organic heat carrier furnace, heat exchanger (if any), on-site explosion-proof operation box, hot oil pump, expansion tank, etc. The inlet and outlet pipes and some electrical interfaces can be used.Vacuum heat treatment of high speed steel For the electric heating oil furnace, the heat is generated and transmitted by the electric heating element immersed in the heat-conducting oil. The heat-conducting oil is used as the medium, and the circulating pump is used to force the heat-conducting oil to circulate in the liquid phase. After the equipment is unloaded by the heating equipment, it passes through the circulating pump again, returns to the heater, absorbs heat, and transfers it to the heating equipment. In this way, the continuous transfer of heat is realized, the temperature of the heated object is increased, and the heating process is achieved. Require. With complete operation control and safety monitoring device, it can implement automatic control.Low pressure vacuum carburizing process of Cr17Ni2 stainless steel It can obtain higher working temperature under lower operating pressure. High thermal efficiency, up to more than 95%, and temperature control accuracy up to ±1℃. The equipment is small in size and flexible in installation. It should be installed near the heat-using equipment.The importance of brazing holding time

What is a sealing cap The sealing cover (furnace cover) of the electric heating reverberatory furnace only bears the pressure of the gas, and the structure is relatively simple.Vacuum carburizing process of auto parts However, the No. 7 part in the sealing cover of the resistance heating furnace has poor working conditions and strict requirements. It needs to be sealed with the crucible; at the same time, it must be sealed with the riser; during pressure maintenance and pouring, it needs to be sealed with the casting mold. Tightly fit and withstand the impact of the weight of the mold and the opening and closing mechanism. Shaft machining vacuum heat treatmentTherefore, the sealing cover must meet the following requirements: first, it is not easy to deform under the action of external force and heat, and the sealing performance is good; second, the temperature of the joint part with the riser pipe is easy to control; third, it is easy to assemble and fasten. The sealing cover material is generally cast with ductile iron or gray iron, and should not be made of steel.Vacuum carburizing process of auto parts

1. Start the heating furnace: 1. Preparatory work before ignitionDifferences in vacuum heat treatment between aerospace blanks and parts (1) Wear labor protection supplies, and bring cotton yarn and adjustable wrench for backup.Step shaft vacuum quenching heat treatment (2) Check the connection points of each part of the gas supply pipeline to ensure that the screws of each part are fully tightened, each gate switch is agile, and the gas supply valve should be in an open state. High speed steel vacuum heat treatment (3) The level gauge should be clean, complete and clear. (4) The safety valve must be intact and sensitive within the validity period, and the set pressure is 0.1MPa. (5) Check the pressure gauge to ensure that the display is sensitive and accurate within the validity period.

1. If the water jacket leaks or the stirring rod leaks, and the stirring water seal leaks, it should not be converted to a hot standby furnace. If the valve of the air branch pipe is not tightly closed or the saturated steam valve is seriously leaked and cannot be repaired and replaced during the hot standby, it should not be used as a hot standby.Vacuum Brazing Technology of Static Guide Vane Ring 2. When planning hot standby, a producer with better furnace condition should be selected for hot standby. If the fire layer is selected to fall, serious slagging will occur in the furnace to generate hot standby, which will inevitably worsen the furnace condition. 3. For the production furnace planned for hot standby, the furnace should be probed in advance, and the part with a small amount of slag should be drilled to break the slag, and drilled at each point of the furnace section to make the furnace section basically tight. 4. Appropriately reduce the ash layer. 5. Properly thicken the coal seam.C/C composite brake material 6. Check whether the maximum relief valve cover is flexible. 7. First reduce the air volume before hot backup. 8. Seal the double vertical pipe water seal, and pull up the maximum release valve in time according to the furnace pressure.Wave spring vacuum heat treatment