The molybdenum has been the best material of electrode for melting high-grade optical glass, glass fiber and refractory rock wool for many years thanks to its advantages of high melting point (2620¡æ), good conductivity and thermal conductivity, small expansion carbide bar stock coefficient, high temperature strength and good resistance to glass corrosion.

However, molybdenum is easy to oxide in oxidizing atmosphere at high temperature, and it will be lost due to the intergranular corrosion of glass liquid on electrode surface. Therefore, it is a common concern to improve the quality and performance of molybdenum glass melting electrodes (GME).

1. Production technology control of moly electrode

Ammonium molybdate is heated to obtain molybdenum trioxide; moly trioxide is reduced to molybdenum powder by hydrogen heating; molybdenum powder to form bank electrode in molds under isostatic pressing equipment; the blank electrode to be sintered, forged and machined into finished products.

2. Control of impurity content

The production of moly electrode requires high-quality molybdenum powder. Impurities will cause cracks or hidden cracks of electrode; C and N contents will cause bubbles in the glass liquid, which will affect the quality of finished glass; metal elements such as Ti, Ni, Cu, CD will make the glass colored.

3. Control of molybdenum powder particle size

It is concluded that the molybdenum powder with medium particles and close to normal distribution is the best material for producing high-quality molybdenum electrode products, according to the production experience and Tungsten Carbide Plate data analysis.

4. Sintering of moly electrode

In order to reduce the temperature difference between inside and outside of blank molybdenum electrode, slow and smooth temperature rise and stage heat preservation system are adopted to prevent hidden cracks caused by excessive thermal stress. Appropriate holding temperature and holding time can ensure fine and uniform grain structure.

5. Forging of moly electrode

Adopting appropriate forging process, especially appropriate forging temperature, final forging temperature, deformation and deformation.

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Molybdenum market quotation in China: ferro molybdenum, molybdenum concentrate and molybdenum Cemented Carbide Tips oxide prices remain stable on April 19, 2021 affected by the end of steel tenders last week.

New increased orders slow down, leading to the difficulty in the rise of transaction price. with the support of low inventories of raw materials and high production costs, some mining enterprises still have strong rised mentality. participants thought tungsten carbide bars the market may be in a stalemate in the short term.

In the first quarter of 2021, the national industrial capacity utilization rate was 77.2%, a year-on-year increase of 9.9 percentage points. Among them, the mining industry's capacity utilization rate was 75.3%, an increase of 8.2% year-on-year; the manufacturing capacity utilization rate was 77.6%, an increase of 10.4% year-on-year; the power, heat, gas and water production and supply industry capacity utilization rate was 74.5%, A year-on-year increase of 6.7 percentage points.

Prices of molybdenum products on April 19, 2021

Picture of molybdenum sheet

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Thornton was back to his best on the final day as he defeated Jelle Klaasen and second seed James Wade before defeating Huybrechts 6-2 in the final to take the £25,000 top prize at the Maritim Hotel.

After beating Simon Whitlock in the afternoon session, Thornton was dealt a tough quarter-final draw as he matched up with Jelle Klaasen who was looking to continue his stunning form of late after winning last weekend’s Players Championship event in Wigan.

The Scot started well, kicking off with an 11-darter en route to opening up a 4-1 lead, before Klaasen found his form and took the next three legs to level. Thornton would regain his composure though as he took the final two legs eccentric drill bits to wrap up a 6-4 win and end the recent dominance of the Dutchman.

And things would not get any easier for the 47-year-old as he matched up with James Wade in the semi-finals, who was heading into the match on the back of an impressive 6-3 win over Vincent van der Voort.

But Thornton would make light work of his opponent as he produced the performance of the weekend, averaging 111.77 and landing four maximums during a 6-1 demolition of The Machine, landing an 11-darter and two 12-dart legs during the stunning victory.

And Thornton’s form would not desert him in the final as he stormed into a 3-0 lead against Huybrechts, before quickly extending that to 5-2 and finishing with a flourish, taking out 116 – his highest checkout of the match – in the final leg to secure the landmark rock drill bits success, averaging 106.18 in the process.

“I came into the tournament and I wasn’t really under any pressure because when I come to these European events I’m normally knocked out on the Saturday afternoon!” said Thornton.

“I’ve got to put the win down to my wife, she calls me a little Pit Bull Terrier and says that I never give in and I proved that tonight.

“I lost my mum last year and I thought to myself ‘calm yourself down and go and play tungsten darts’ but that wasn’t working. I’m a better player when I show my emotions and it’s taken a couple of months for it to come out but I played well.”

Huybrechts also enjoyed a tough route to the final as he survived a resurgence from Brendan Dolan to win 6-3 High Air Pressure Drill Bits in the quarter-finals before then stunning world number one Michael van Gerwen to book his place in the final.

The Hurricane produced a fine display, dominating the clash against a below-par van Gerwen for long periods and running out an impressive 6-3 victor to reach his second European Tour final.

As for professional game of dart, we recommend tungsten dart, tungsten is an extremely dense metal. It is also very durable, so a high-density tungsten dart resists wear and the knurling will last much longer.

 http://thomaschap.blogtez.com/post14.php

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