A casting alloy thermal analyzer

Abstract

The invention belongs to the technical field of thermal analyzers, and is specifically a cast alloy thermal analyzer; it includes an operating table; a furnace body is arranged at the upper end of the operating table; a bracket is arranged in the furnace body; There is a stepped cavity inside the fixed support plate; the top of the screw shaft is connected with a heating support plate through a bearing, and a spiral heating wire is arranged inside the heating support plate; multiple sliding cavities are opened on the end surface of the fixed support plate; the bottom end of the screw shaft is in the In the stepped chamber, multiple pull ropes are sleeved on the helical shaft; the ends of multiple pull ropes pass through the wire holes and are connected to the bottom ends of multiple clamping strips; multiple clamps are uniformly set on the heating support plate The multiple clamping cavities are respectively aligned with the multiple sliding cavities; the multiple clamping cavities are respectively slid and engaged with clamping strips, and the inner surface of the upper end of the multiple clamping strips is clamped with the outer surface of the sample crucible contact; the bottom end of the helical shaft is connected with a spring; the stability and firmness of the sample crucible installed in the furnace are improved.

Description

technical field [0001] The invention belongs to the technical field of thermal analyzers, in particular to a casting alloy thermal analyzer. Background technique [0002] A thermal analyzer is an instrument that uses thermogravimetry to detect the temperature-mass change relationship of a substance. Thermogravimetry is to measure the relationship between the mass of a substance and temperature (or time) under program temperature control. When the substance to be tested sublimates, vaporizes, decomposes gas or loses crystal water during the heating process, the quality of the substance to be tested will change. At this time, the thermogravimetric curve is not a straight line but decreases. By analyzing the thermogravimetric curve, you can know how much the measured substance changes, and according to the weight loss, you can calculate how much substance is lost. [0003] The bottom end of the bracket inside the existing thermal analyzer is connected to one end of the balan...

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Problems solved by technology

[0003] The bottom end of the bracket inside the existing thermal analyzer is connected to one end of the balance in the operating table. When the alloy material in the sample crucible is heated and volatilized and the weight is reduced, one end of the balance will tilt, which will cause the bracket to tilt. At the same time, it is easy to cause the sample crucible to be placed on the bracket to tilt

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