Life
On The {Left) HARD, WEAR-RESISTANT METAL SURFACES a r e p r o d u c e d b y t h e " c a s e h a r d e n i n g " or c a r b u r i z i n g of r e l a t i v e l y l o w c a r b o n s t e e l s . L i q u i d b a t h c a r b u r i z i n g offers a n u m b e r of d i s t i n c t a d v a n t a g e s over o t h e r m e t h o d s , since i t p r o v i d e s u n i f o r m i t y of p e n e t r a t i o n , r a p i d b e a t t r a n s f e r , u n i f o r m i t y of h e a t i n g a n d r e d u c t i o n of d i s t o r t i o n . I n a d d i t i o n , l i q u i d b a t h carburizing provides protection f r o m oxidat i o n of t h e s t e e l s u r f a c e d u r i n g t h e t r a n s f e r from carburizing media to q u e n c h without the necessity of expensive a n d intricate mechanical equipment. Pioneering in the d e v e l o p m e n t of t w o - c o m p o n e n t l i q u i d c a s e h a r d e n i n g a n d c a r b u r i z i n g , C y a n a m i d hat, developed AEROCARB*, A E R O C A R B Deepcase, and A E R O C A S E * , which provide c a s e d e p t h s of . 0 0 1 " t o . 1 5 0 " . T h e p h o t o g r a p h s a t t h e left, s h o w a c r o s s - s e c t i o n of a g e a r i n w h i c h t h e d e p t h a n d u n i f o r m i t y of t h e c a s e h a r d e n e d g e a r - t e e t h s u r f a c e is graphically demonstrated.
M E Ï A L TRADES L A B . . A M E R I C A N C Y A N A M I D C O . T H O U S A N D T H S O F AN I N C H SCALE
(Left) TO GUARD AGAINST structural failure resulting from salt water corrosion, t h e exposed surfaces of aluminum alloys in airplanes are protected against corrosion by an under coating of a zinc chromate primer, an essential ingredient of which has been chinawood oil. A recent announcement of the Chemicals Division of the War Production B o a r d , however, precludes use of chinawood oil for alkyd resins used to m a k e these essential aircraft primers. Cyanamid's foresighted ff replacernen t research" h a s developed R E Z Y L * 727-5 and R E Z Y L 728-5, two new resin vehicles, produced without critical oils. T h e s e have proven efficient substitutes in production of fast-drying zinc chromate primers t h a t meet the rigid requirements of U.S. Army and N a v y specification standards. I n the latest issue of "Specification Finishes," Cyanamid h a s u n d e r t a k e n t o accurately correlate U . S. A r m y , N a v y , M a r i t i m e Commission and other " S p e c s " with the specific resins t h a t will imeet these requirements. Complete suggested formulations are given for m a n y of the m o r e i m p o r t a n t specifications. A copy of " C y a n a m i d Resins for Specification Finishes" m a y be obtained on request.
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(Above) LOCATING AIRMEN FORCED DOWN AT SEA is one o f the many dramatic contributions that h a v e been m a d e in t h e war efTort. Our government has provided every aviator, and every rubber life raft carried i n our planes with a cc Life Jacket D y e Marker" kit contain-
ing uranine, a product of the Calco Chemical Division of American Cyanamid Company. When this kit is opened and the dye released, a brilliant yellow-green spot^ visible for miles, spreads instantly over t h e sea making it easy for searching planes t o spot them.
(Right) FLUORESCENT TUBE SOCKETS are molded of B E E T L E * plastic i n a variety o f t y p e s and styles t o meet t h e varied requirements of modern industry. Because of its high di electric strength, its light weight a n d dura bility, High electrical insulation v a l u e and its - . . . ' „ * £ — : : appearance, - B Τ >E Τ ?E Ϊ ?T Τ »L Τ ΤE ? , Cyanamid's ^ . ^ « « « , , Μ Ό attractive urea-formaldehyde molding compound, has been found ideal for many such electrical and lighting applications. Another examnle of the versatility of B E E T L E plastics i s its use for safety reflectors and diffusers on incandescent fighting fighting ifixtures. I n addition to these electrical applications B E E T L E has been found especially useful for c a p and bottle closures, tableware and buttons- In planning t h e designs of Tomorrow, other Cyanamid plastics and laminating resins will also play a major part. MEUMAC* thermo setting plastics offer unusual possibilities for articles in which high dielectric strength and arc-resistance are required, or wnere low moisture absorption i s desirable. *Reg.U. S.Pat. Off.
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