The term "diamond machine" can refer to several types of machines, each serving different purposes in the process of creating, analyzing, or cutting diamonds. Here, we will discuss three primary types of machines mentioned in the reference: machines used for spectroscopic analysis of diamonds, fully automatic diamond wire cutting machines, and machines used for creating lab-grown diamonds through high-pressure high-temperature (HPHT) methods.
1. Spectroscopic Analysis Machines: These machines, such as the DiamondView, are used to analyze the authenticity and origin of diamonds. They work by bombarding a diamond with specific types of radiation and analyzing the output. The spectroscopic analysis can reveal characteristic spikes and troughs at specific wavelengths, which are tell-tale signs of the various processes used to make lab-grown diamonds. For instance, CVD (Chemical Vapor Deposition) diamonds can show microscopic growth lines visible under these machines, indicating the layering of diamond material. This analysis is crucial for determining whether a diamond is natural or lab-grown.
2. Fully Automatic Diamond Wire Cutting Machines: These machines, exemplified by the STX-1203, are designed for cutting materials of various hardnesses, including diamonds. They are equipped with a diamond wire that moves at a constant speed, driven by a main motor. The machine can handle materials like ceramics, crystals, glass, metals, and more, with high precision. Features such as a pneumatic tensioning system, PLC program control, and a large-size touch screen enhance its functionality and ease of use. The STX-1203 can continuously feed samples without manual adjustment, ensuring high dimensional accuracy in the cut samples.
3. Machines for Creating Lab-Grown Diamonds: These machines are used to create lab-grown diamonds through HPHT methods. The process involves placing a small diamond seed in a carbon-rich environment and subjecting it to extremely high pressure and temperature. Two types of machines are commonly used:
- Cubic Press: Utilizes pistons located throughout the machine to create high temperature and pressure from different directions.
- Belt Press: Uses two strong pistons applying equal pressure in opposite directions to achieve the necessary conditions for diamond growth.
The GE invention of the belt press, which can exert pressure over 1.5 million pounds per square inch and temperatures above 2,000 degrees Celsius, was pivotal in the reproducible creation of lab-grown diamonds.
In summary, "diamond machines" encompass a range of technologies, each tailored to specific aspects of diamond handling, from creation and analysis to precision cutting. These machines leverage advanced technologies to manipulate and understand diamonds, contributing significantly to the diamond industry.
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