HPHT Cubic Press
Maureen L.
Talks about #cvddiamond, #cvddiamondcolorenhancement, #hphttreatment, #hphtdiamond, #labgrowndiamond, #highpressurehightemperature
As lab grown diamond and high-end semiconductor markets are rapid growing, companies throughout the world would like to invest HPHT machine.
HPHT cubic press is the High Pressure High Temperature equipment, also called Synthetic Diamond HPHT Cubic Press, Diamond Making Press, HPHT Hydraulic Cubic Press. It has been widely used in China, then in Russia and Ukraine, especially the large cylinder models Ф850mm, Ф980mm, Ф1000mm. And now also in India, because lab grown diamond field has been one of the key concerns for the Indian government, absorbing into the PLI scheme (Production-linked Incentives).
When choosing the full set HPHT cubic press equipment, it is needed to understand in advance production purposes, for synthetic industrial diamond powder, HPHT roughs growth, CVD diamond color enhancement, PDC, or PCD products, etc.
With different directions, machine configurations shall be various. For instance, to grow HPHT lab grown diamonds, the synthesis process is long and pressure control requires high accuracy. Thus, the electrical control panel must be equipped with a high configuration. To make industrial diamonds, the process is short, around 25mins-45mins. The requirements of pressure increasing and dropping are simple. Configuration determines the price.
As to this hot market, many companies are asking for second-hand HPHT presses. To understand and choose the right old machine need veteran. When facing old machine, what generally asked is life machine already used. But it is vital to learn clearly one 8-year machine with the other 8-year press has a huge difference. For example, one 8-year HPHT press had been used for large crystal growth, which means pressure used comparatively low, and one batch process long; whereas, for the other 8-year machine for daily diamond powder synthesis, one run with about 30mins, 7/24 working. Thus, to know machine past working performance is necessary. Secondly, it is a way to observe outer appearance. Check below in the picture, the ears of hinge beams and pins holes were worn heavily.
领英推荐
The new shall be like this:
HPHT machine includes Cubic press, Toroid press, Belt press, evolving from Russian belt type, toroid press to Chinese cubic press. Still, there are European companies using toroid type for life diamond growth. Doing comparison, even though HPHT cubic press machine itself price is higher, production capacity is much higher because of reaction cell. Moreover, it is easy for operation with low maintenance. There is no need to replace parts often. Thus, it can be widely used, especially in China, Russia, US and Ukraine.