Multiple composite rare earth tungsten electrodes swaging process string playing devices invented by two of the same model is used , the same frequency and speed of rotary forging machine (B201-B201, B202- B202) consisting of string playing devices multiple composite rare earth tungsten electrode material B202, B201 stage processing , B203, B202, B201 as tungsten and molybdenum in the regular machining processes , typically used for segmentation swaging process , is the use of B-203, B-202, B-201 swaging the swaging machine for processing . B-203, B-202, B-201 rotary forging machine for the device model , B-203 rotary forging machine rotary hammer stroke max , suitable for processing large workpieces ; B-202 rotary forging machine rotary hammer stroke , followed by appropriate machining small parts ; B-203 rotary forging machine rotary hammer stroke minimum , generally used for processing smaller parts. Die change system Φ6 other means swaging touched minimum diameter of 6mm.

Multiple composite rare earth tungsten electrodes swaging process parameters string playing devices formulation is based on multiple composite rare earth tungsten electrode materials developed organizational variation , the process of deformation of the electrode material organizational changes, recovery temperature and the recrystallization temperature is also based on the degree of deformation change so as to avoid multiple composite rare earth tungsten electrode material embrittlement recrystallization , also need to change the processing temperature to keep the temperature in the reply above the recrystallization temperature. Therefore, the equipment and technology to match the technical parameters , and is limited to multi-composite production and processing of rare earth tungsten electrodes , the main advantages of this process are: ( 1 )A process through two rotary forging dies , the original B202 6 step process reduced to three , the B201 process in four steps to reduce the current two , the processing efficiency doubled. ( 2 )Use of string playing techniques , billet machine after the first one rotary hammer forged quickly after entering the next rotary hammer forging machine , to avoid heat loss , and thus economic energy .


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This rare earth market is still deserted , downstream buyers demand is still small, low-cost shipping upstream manufacturers nor positive , at present, the State Reserve Shouchu details yet to be finalized , no good news, some market participants have bearish sentiment .

Praseodymium oxide mainstream manufacturers tax price 560,000-580,000 yuan / ton. Neodymium oxide 350,000-355,000 yuan / ton.

Dysprosium oxide mainstream manufacturers tax price 190-210 yuan / ton, dysprosium iron mainstream manufacturers tax price 205-215 yuan / ton.

Lanthanum oxide manufacturers tax price 27,000-28,000 yuan / ton. Cerium oxide mainstream manufacturers tax price 26,000-28,000 yuan / ton.

Neodymium oxide, praseodymium mainstream manufacturers tax price 350,000-355,000 yuan / ton , praseodymium neodymium metal mainstream manufacturers tax price 435,000-445,000 yuan / ton.

Europium oxide phosphor grade mainstream manufacturers tax price 4,800-5,000 yuan / kg . Terbium oxide phosphor grade mainstream manufacturers tax price 4,100-4,200 yuan / kg .


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Multiple composite tungsten electrodes swaging process strings play equipment technical problems , multiple composite tungsten electrodes swaging equipment technology invented string playing the main purpose is to adapt to multiple composite rare earth tungsten electrodes mechanical properties of materials , the use of string playing techniques to achieve efficient processing of tungsten materials , multiple composite tungsten electrodes swaging string playing equipment technology invented by two of the same model using the same frequency, the same speed rotary forging machine (B201-B201, B202-B202) string playing devices consisting of multiple composite rare earth tungsten electrode material B202 , B201 stages of processing , wherein :

( 1 ) First, the first heating furnace 1, the second heating furnace 4 heated to 1450 ~ 1500 ℃, and after the swaging through B203 diameter Φ6.5 polyhydric composite rare earth tungsten electrode material to rate 2 ~ 3m/min fed rotary hammer device starts playing string processing ;

( 2 ) In the B202 stage three times to go through processing , process systems as :

First: the first rotary hammer machine 2 optional Φ6.0 mold ; second rotary hammer machine 5 matching Φ5.6 mold ; first furnace, the second furnace temperature is set to : 1450 ~ 1500 ℃;

Second: the first rotary hammer machine matching Φ5.2 mold ; second rotary hammer machine matching Φ4.8 mold ; first furnace, the second furnace temperature is set : 1400 ~ 1450 ℃;

The third way: the first rotary hammer machine matching Φ4.4 mold ; second rotary hammer machine 5 matching Φ4.1 mold ; first furnace, the second furnace temperature is set to : 1400 ~ 1450 ℃;

( 3 ) In the B201 through two sub- processing stage , the process system is :

First: the first rotary hammer machine matching Φ3.9 mold ; second rotary hammer machine matching Φ3.6 mold ; first furnace, the second furnace temperature is set : 1400 ~ 1450 ℃;

Second: the first rotary hammer machine 2 optional Φ3.3 mold ; second rotary hammer machine 5 matching Φ3.0 mold ; first furnace, the second furnace temperature is set to : 1350 ~ 1400 ℃; through the above processing can get Φ6-Φ3 diverse composite rare earth tungsten electrode material .


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Last year, listed companies involved in purchasing and storage of rare earth authoritative sources , this earth is not yet officially started purchasing and storage company yet to receive notice of , " purchasing and storage generally only for state-owned enterprises , purchasing and storage price is basically a reference to the previous months the average price . "

The sources, purchasing and storage is scheduled Rare allow companies to bid , but only state-owned enterprises purchasing and storage , there are strict procedures and standards , " purchasing and storage are generally stable prices when purchasing and storage , the highest it will not purchasing and storage , the state may also be thrown out at the appropriate time . "

Earlier, experts said Chamber of Commerce , RE state purchasing and storage time and conditions are specific state secrets , the public will not be published . He further said that the earth will certainly be favorable purchasing and storage of raw materials involved in purchasing and storage enterprises, indirectly, would be favorable throughout the upstream rare earth industry .

For the rare-earth prices , the source said, purchasing and storage will support the prices of rare earth , while the earth as a strategic resource , the future price will be higher and higher, because the South will be less and less of heavy rare earths , and the current is limited to technology, marine rare earth the cost is too high .

According to public reports, in 2012 the price of purchasing and storage of rare earth allegedly by six months the average price of the acquisition . According to statistics, in 2013 the average price of rare earth 1-9 months : praseodymium neodymium 312,000 yuan / ton ; praseodymium 398,000 yuan / ton ; neodymia 313,000 yuan / ton ; europium oxide 4582000 / ton ; terbium oxide 3,667,000 yuan / ton ; dysprosium 1,938,000 yuan / ton ; erbium oxide 299,000 yuan / ton ; yttria 79,000 yuan / ton.

Recent widespread rumors of rare earth Shouchu yet today there has been progress .


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