公开(公告)号：US4663563A

公开(公告)日：1987-05-05

申请号：US855629

申请日：1986-04-25

申请人： Akira Taya ,  Kazuo Narita ,  Yasuhiko Hagiwara ,  Keiji Hatakeyama

发明人： Akira Taya ,  Kazuo Narita ,  Yasuhiko Hagiwara ,  Keiji Hatakeyama

IPC分类号： C09K11/71 ,  C09K11/73 ,  C09K11/77 ,  H01J61/44 ,  C09K11/477

CPC分类号： C09K11/71 ,  C09K11/7796 ,  H01J61/44

摘要： Disclosed is a halophosphate phosphor activated with divalent europium, which is represented by the formula:M.sub.5-a X(PO.sub.4).sub.3 :Eu.sup.2+ (a),RE(b),wherein M represents three alkaline earth metals consisting of barium, calcium and magnesium; X represents at least one of fluorine, chlorine and bromine; RE represents at least one of rare earth elements selected from the group consisting of ytterbium, neodymium, samarium, dysprosium, holmium and thulium; and a and b each represent a positive number of less than 5.Disclosed is also a fluorescent lamp which comprises a glass tube and a mixture of a halophosphate phosphor activated with divalent europium represented by the above formula and a strontium-magnesium orthophosphate phosphor activated with tin represented by the formula: (Sr,Mg).sub.3 (PO.sub.4).sub.2 :Sn, the mixture being coated on inside wall of the glass tube.The halophosphate phosphor of this invention can decrease to a greater extent the afterglow as compared with those known in the prior art, without loss of the luminescence intensity. The fluorescent lamp of this invention has large initial luminous flux and luminous flux-maintaining efficient, color rendering at 4,200 to 5,600 K classified into the EDL type, afterglow time being shortened to the level at which any problem does not arise in practical use.

摘要翻译： 公开了用二价铕活化的卤代磷酸盐荧光体，其由下式表示：M5-aX（PO4）3：Eu2 +（a），RE（b），其中M表示由钡，钙和镁组成的三种碱土金属; X表示氟，氯和溴中的至少一种; RE表示选自镱，钕，钐，镝，钬和th中的至少一种稀土元素; 并且a和b各自表示小于5的正数。还公开了一种荧光灯，其包括玻璃管和由上式表示的二价铕活化的卤代磷酸盐荧光体和由上式表示的锶 - 镁正磷酸盐荧光体的混合物， 锡（Sr，Mg）3（PO4）2：Sn表示的锡，混合物涂覆在玻璃管的内壁上。 与现有技术中已知的相比，本发明的卤代磷酸盐荧光体可以在更大程度上降低余辉，而不损失发光强度。 本发明的荧光灯具有较大的初始光通量和光通量保持效率，分色为EDL型的4,200至5,600K的显色性，余辉时间缩短到实际使用中不出现任何问题的程度。

公开(公告)号：US4008103A

公开(公告)日：1977-02-15

申请号：US613996

申请日：1975-09-17

申请人： Eiji Miyoshi ,  Minoru Fukuda ,  Yasuhiko Hagiwara ,  Yasuhiro Asai

发明人： Eiji Miyoshi ,  Minoru Fukuda ,  Yasuhiko Hagiwara ,  Yasuhiro Asai

IPC分类号： C21D8/02 ,  C22C38/04 ,  C22C38/14 ,  C21D7/14

CPC分类号： C22C38/04 ,  C21D8/0226 ,  C22C38/14 ,  C21D8/0263

摘要： Strong and tough steel is prepared by heating to a temperature of 800.degree. - 1000.degree. C., preferably from 800.degree. to 950.degree. C., before the rolling step, finish rolling at temperatures within the range of from 680.degree. to 850.degree. C., preferably from 680.degree. to 800.degree. C. and with a reduction ratio in thickness of not less than 30% based on the plate thickness of the steel when the finish rolling is started. It is advantageous to provide for a pretreatment of the steel, said pretreatment including the steps of initially heating the steel to a temperature higher than 1000.degree. C., rolling the heated steel to a suitable intermediate thickness and cooling the rolled steel to a temperature lower than 650.degree. C.Tempering may also be carried out at a temperature of 500.degree. - 650.degree. C. for 20 minutes -- 2 hours.

摘要翻译： 通过在轧制步骤之前加热至800-1000℃，优选800-950℃的温度制备强韧钢，在680℃至850℃的温度范围内进行精轧 优选为680℃〜800℃，并且当开始精轧时，厚度的减薄率相对于钢板的板厚不小于30％。 提供钢的预处理是有利的，所述预处理包括首先将钢加热到高于1000℃的温度，将加热的钢轧制到合适的中间厚度并将轧制钢冷却到较低的温度 超过650℃