Simple, versatile is its main feature, can be widely used in annealing, normalization
, quenching, tempering, carburizing and carburizing and nitriding. The main metal heating element includes Ni-Cr
Heating wire (most common, up to 1200 ° C), Mo-Si alloy and W, Mo, etc.
Metal; non-metallic heating elements including SiC (most common, up to 1600 ° C)
LaCrO3 and graphite rods (heated to 2000 ° C in a vacuum or protective atmosphere).
First, the advantages of electric furnace
1) It is easy to obtain high temperature compared to a fuel furnace.
2) It can be heated from the inside of the material to heat it up.
3) Easy to use in controlled atmosphere furnaces and vacuum furnaces.
4) The electric furnace does not have the heat loss of the exhaust gas of the fuel furnace, so the heat efficiency is high.
5) Easy to control temperature, easy to remote control, fine adjustment.
6) Can be heated quickly.
7) Good operation performance and no pollution to the environment.
Second, the shortcomings of electric furnace
1) Need to increase the cost of power distribution equipment.
2) High power costs.
3) When the resistance heating temperature exceeds 1000 °C, the refractory material may be conductive and needs
Pay attention to the insulation problem.
Coffee Carafe is convenient to drink Coffee, both woke up very late in the morning, a cup of coffee is enough to make you relax.
A French press works best with coffee of a coarser grind than does a drip brew coffee filter. Finer grounds, when immersed in Water, have lower permeability, requiring an excessive amount of force to be applied by hand to lower the plunger and are more likely to seep through or around the perimeter of the press filter and into the coffee.[2] Coffee is brewed by placing the ground coffee in the empty beaker and adding hot (93-96 degrees Celsius, 200-205 degrees Fahrenheit) water, in proportions of about 30 grams (1 ounce) of coffee grounds to 500 ml (15 fluid ounces) of water, more or less to taste. The brewing time is about two to four minutes. The plunger is pressed to separate the grounds and hold them at the bottom of the beaker. If the brewed coffee is allowed to remain in the beaker with the used grounds, the coffee may become astringent and bitter, though this is an effect that some users of the French press consider desirable. It is believed that the optimum time for brewing the coffee is around 4 minutes. Some consider the coffee spoiled after about 20 minutes.[3] Other approaches, such as cold-brewing, require several hours of contact between the water and the grounds to achieve the desired extraction.
Coffee Carafe
Coffee Carafe,Glass Coffee Carafe,Stainless Steel Lid Glass Carafe,Glass Drip-Free Carafe
Hejian Jia Teng Glass Products Co., Ltd. , https://www.jtglassware.com