摘要:
A sialon type phosphor in the form of a powder comprising at least 40 wt % of &agr;-sialon represented by the formula (Cax,My)(Si,Al)12(O,N)16 (where M is at least one metal selected from the group consisting of Eu, Tb, Yb and Er, 0.05
摘要:
In an electronic component supply device electronic components are accommodated within cavities formed in a carrier tape of which surface is covered with a top tape. A peeling portion for peeling off the top tape from the carrier tape includes a peel-away cutout portion cut into a tape transfer direction. A thin plate has an angled portion having a rounded portion. A concavity, in which the thin plate operates, is formed in the tape pressing member downstream of the peel-away cutout portion in the tape transfer direction.
摘要:
The present invention provides a luminous storage material that emits a blue or bluish green light, that has high persistence, that is thermally and structurally stable, and that exhibits a high weather resistance in chemically severe conditions. The present invention also provides manufacturing method for this material. A blue aluminum silicate luminous storage material according to this invention is composed of a powdered product that has been activated by Eu.sup.2+ wherein its composition formula is expressed as follows:(M.sub.l-n-m M*.sub.n -Eu.sub.m)(Al.sub.1-x Si.sub.3/4 x.quadrature..sub.1/4.times.).sub.2 O.sub.4(wherein .quadrature. is vacancy; M is one or more types of alkali earth metal elements selected from a group of magnesium, calcium, strontium, and barium; M* is one or more types of bivalent metal elements selected from a group of manganese, zinc, and cadmium; and (n), (m), and (x) consist of numerical values meeting the ranges 0.ltoreq.n.ltoreq.0.2, 0
摘要翻译:本发明提供一种发光蓝光或蓝绿色光的发光存储材料,其具有高的持久性,其热稳定性和结构稳定性,并且在化学苛刻条件下表现出高耐候性。 本发明还提供了该材料的制造方法。 根据本发明的蓝色硅酸铝发光储存材料由已经被Eu 2+激活的粉末产品组成,其组成式如下表示:(M1-n-mM * n-Eum)(Al1-xSi + E, 3/4 + EE x&squ + E,fra 1/4 + EE x)2O4(其中&是空位; M是选自镁,钙,锶和钡的一种或多种碱土金属元素 ; M *是选自锰,锌和镉的一种或多种二价金属元素;和(n),(m)和(x)由满足范围0 = /=0.2,0
摘要:
A magnetic screw conveying apparatus comprises a rotary shaft 11 rotatably supported, a stepmother 19 for driving the rotary shaft 11 to rotate, a male magnetic screw 15 having magnetized bands with a south pole S and a north pole N alternately magnetized and in parallel to each other on the outer periphery of the rotary shaft, a first slide table 21 slidably mounted on the rotary shaft 11, a first female magnetic screw 27 having magnetized bands with a south pole S and a north pole N alternately magnetized in a spiral form at a first inclination angle .theta.1 on an inner periphery surface of the first slide table, opposite to the male magnetic screw, a second slide table 22 slidably mounted on the rotary shaft 11, and a second female magnetic screw 28 having magnetized bands with a south pole S and a north pole N alternately magnetized in a spiral form at a second inclination angle .theta.2 on an inner periphery surface of the second slide table, opposite to the male magnetic screw, wherein, with the rotation of the rotary shaft 11 by the step motor 19, the first and second female magnetic screws 27 and 28 receive magnetic force from the male magnetic screw 15 respectively, thereby allowing the first and second slide tables 21 and 22 to move at different speeds.