公开(公告)号：US4131470A

公开(公告)日：1978-12-26

申请号：US753145

申请日：1976-12-21

Applicant: Gunther Fischer ,  Beate Wenzel ,  Steffen Scheithauer ,  Udo Franz ,  Karl-Wilhelm Junge ,  Christof Schroter ,  Siegfried Gahler ,  Johannes Morgenstern

Inventor： Gunther Fischer ,  Beate Wenzel ,  Steffen Scheithauer ,  Udo Franz ,  Karl-Wilhelm Junge ,  Christof Schroter ,  Siegfried Gahler ,  Johannes Morgenstern

IPC: G03C1/34 ,  G03C1/28

CPC classification number: G03C1/346

Abstract: A process for the stabilization of and the prevention or substantial reduction of fogging in the use of photographic silver halide emulsions, characterized in that compounds selected from the group consisting of those represented by the general formulas I, II, and III: ##STR1## are added to the emulsion, before or during chemical sensitization and before coating of the emulsions onto a support therefor, wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are as herein described.

Abstract translation: 一种在使用照相卤化银乳剂中稳定并防止或显着降低起雾的方法，其特征在于选自由通式I，II和III表示的那些化合物：为化合物的化合物为 在化学增感之前或期间，并且在将乳剂涂覆到其载体上之前添加到乳液中，其中R 1，R 2，R 3和R 4如本文所述。

公开(公告)号：US4120726A

公开(公告)日：1978-10-17

申请号：US824188

申请日：1977-08-12

Applicant: Gerhard Hanisch ,  Gunther Fischer ,  Seigfried Gahler ,  Udo Franz ,  Karl Kuschel ,  Roland Mayer ,  Gunther Bach ,  Karl-Wilhelm Junge

Inventor： Gerhard Hanisch ,  Gunther Fischer ,  Seigfried Gahler ,  Udo Franz ,  Karl Kuschel ,  Roland Mayer ,  Gunther Bach ,  Karl-Wilhelm Junge

IPC: G03C1/09 ,  G03C1/28

CPC classification number: G03C1/09

Abstract: An improved photographic silver-halide emulsion containing a sensitizer additive which is an asymmetrical disulfide of the formula(W).sub.a (X).sub.b A--S--S--B(Y).sub.c (Z).sub.dwherein:A and B are each aryl, alkyl or aralkyl radicals,X and Y are each carboxyl or alkoxycarbonyl groups,W and Z are each amino groups which may be alkylated or acylated,a, b, c, d are each 0 to 3 anda + d .gtoreq. 1 and b + c .gtoreq. 1.

Abstract translation: 含有敏化剂添加剂的改进的照相卤化银乳剂，其是式（W）a（X）bA-S-S-B（Y）c（Z）d的不对称二硫化物。

公开(公告)号：US5958263A

公开(公告)日：1999-09-28

申请号：US861501

申请日：1997-05-22

Applicant: Udo Franz

Inventor： Udo Franz

IPC: B23K9/20

CPC classification number: B23K9/201

Abstract: To evaluate the quality of a weld produced by a stud welding process, the time characteristic of the resistance R (t) between the stud and the workpiece is determined. If the resistance or the increase in resistance or the rate of increase of the resistance exceeds a predetermined value during the arc period, this is an indication of arc blow effects, of spattering, and of the arc burning outside the bonding area--effects which impair the quality of the weld. Upon detection of a predetermined resistance increase, the weld process is terminated by turning off the weld current or by immediately immersing the stud into the melt of the workpiece. Alternatively, the characteristic of the resistance over time detected in a first welding process can be used to set the parameters for subsequent welding processes.

Abstract translation: 为了评价由螺柱焊接工艺生产的焊缝的质量，确定螺柱和工件之间的电阻R（t）的时间特性。 如果电弧期间的电阻或电阻的增加或电阻的增加率超过预定值，则这表明在焊接区域效应之外的电弧放电效应，溅射和电弧燃烧的损害 焊缝的质量。 在检测到预定的电阻增加时，通过关闭焊接电流或立即将螺柱浸入工件的熔体中来终止焊接过程。 或者，可以使用在第一焊接工艺中检测到的随时间的电阻的特性来设置随后的焊接过程的参数。