Inland Steel Company “Monostress”

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You The Standard steel shipping drum has served industry well in motion as a carrier and Standing still as a storage container or dispenser the familiar 55 gallon 18 gauge steel drum has performed Successfully for many years it is so close to being good enough that it has defied basic change yet for years Industry has been asking for something better a container that would do the job as well yet cost less and way less for many applications the standard steel drum seems to be a classic example of over packaging This is contrary to nature and sound economics Industrial design often takes its basic principles from nature Discovering first that form follows function We see this in the hive of the honeybee where lightness matches strength the long slender bamboo stem the shell of the chambered nautilus Secondly a basic law of nature is to get the most for the least That is the greatest strength and function proceeding from the economy of matter and structure This concept of the most for the least is equally basic to industry in nature changing environment and the struggle for survival modify form in industry changing demands and methods Competition and the ever -present profit squeeze have applied increasing pressure for a shipping container That will do the work of an ordinary steel drum Yet conform to the rule of the most for the least by combining balanced strength with lower cost and weight in response to this need a truly new steel shipping container has been developed a product of inland van leer research practical fully tested low cost and lightweight This is the new inland monostress drum the result of more than five years of basic research development and worldwide testing The successful effort to develop this drum began in 1959 When two of the world's largest producers of steel containers inland steel container company in the United States and the van leer group of companies in Europe initiated a joint program of research and development Directed toward new and improved industrial packaging as part of this ongoing program the Passfield research laboratory at Passfield England was established to study industrial packaging requirements and to conduct basic research and experimental work using the latest in scientific methods and equipment in addition at Delft the Netherlands The Delft Gouw development center was organized and equipped to undertake a continuing program of prototype development and testing of new designs for industrial shipping containers The initial project was to develop a high -strength low -cost lightweight steel drum conventional methods and designs were put aside Unique structures were designed and made into full -scale prototypes some with odd -looking results the first prototype was sufficient promise to merit extensive testing was the r24 a 24 gauge drum with 22 gauge ends with a variety of special reinforcing features 1000 drums 500 conventional 18 gauge control drums and 500 experimental r24 models were filled with water and shipped to five worldwide destinations Chicago France Morocco Trinidad and South Africa the routes chosen Involved the greatest variety of handling and transportation conditions The results of this extensive field test were extremely discouraging Failure often occurred adjacent to the chime weld end reinforcing cups did not improve performance Leaks occurred when body deformations resulted in sharp cross folding of the steel stress concentrations resulting from the forming process induced failure Rigid body reinforcements contributed to metal fracture when drum bodies were abused or deformed Sharp chimes were inherently weak and often damaged adjacent drums during handling and shipment a whole new series of drum types were then designed and constructed and To provide a basis for realistic laboratory evaluation testing equipment Designed to duplicate actual conditions and hazards encountered in the field was built and installed at the Delph Gal laboratory Comparative tests on these six prototypes Clearly demonstrated the superiority of reinforced chimes and multiple body beads formed from the parent metal Five new drum types were constructed each with identical chimes from 24 gauge steel They possessed widely different sidewall configurations These designs were subjected to full testing programs There were failures but this time one prototype constructed with a continuous series of scientifically proportioned circumferential beads Performed well in all tests this drum became the forerunner of the final monostress design Extended testing however clearly indicated that a special method of manufacture would have to be devised To form the multiple beads while at the same time Conserving the inherent ductility of the 24 gauge steel Conventional forming techniques used to create ordinary corrugations Weaken the steel by consecutive rolling and rerolling stretching the steel and causing critical loss of elasticity Unlike corrugating the proprietary monostress process forms expanded beads with virtually no axial stress The drum body is actually allowed to shorten during the forming process Minimizing stress and avoiding extensive work hardening of the steel The drum body is stressed in one direction only thus the name monostress the result a drum sidewall with more uniform metal thickness and a Resultant spring like resilience and strength balance that imparts high performance characteristics to the light gauge steel Finally to ensure consistent application of the important monostress principle in actual production Monostress drums are manufactured on inland designed high -speed forming machines that were engineered and built Specially to produce this drum the only equipment of its kind in existence today In its final form the inland monostress drum truly offers the most for the least By combining light gauge steel the unique sidewall configuration and special construction features to achieve balanced strength Chimes are strengthened with the addition of a specially engineered 18 gauge chime Reinforcement which unlike a conventional chime band is an integral part of the double seam the result a safe strong chime Eight layers of metal without a weld providing extra strength where it is needed most Conventional closures are reinforced at the critical area where the flange is seen to the drum head with heavy steel tag rings That provide extra strength for consistent performance The drums can be lined for added protection of high purity or corrosive products like all inland drums Monostress drums can be painted with your corporate colors or lithographed with your corporate design or individual products identification To confirm the remarkable performance characteristics of the final design Monostress drums were exhaustively tested at the Delft Gouw laboratory on testing facilities designed to duplicate the most abusive shipping and handling conditions Monostress drums consistently demonstrated their ability to meet rigorous performance requirements For all tests the drums were filled with water Monostress drums were rolled over concrete slabs and after one mile of travel were carefully examined Axial compression was applied to simulate stacking Indicating that as many as 12 fill drums can be stacked vertically Radio compression tests demonstrated that eight layers of fill drums can be stacked horizontally with slight deformation Internal overpressure tests were conducted to the point of failure Evacuation tests confirmed the integrity of the monostress design pressure changes as a result of temperature variations were studied Vibration tests on a shake table moving at 180 strokes per minute simulated truck and rail transport conditions Axial and radial shocks were repeated for thousands of cycles without failure and In the crucial drop tests the same monostress drum was dropped from a four foot height in five different positions Dramatically demonstrating the drums ability to absorb abuse without failure First introduced in Europe more than 150 ,000 van leer produced monostress drums have been used by major companies in France Germany Holland and England continually confirming the drums impressive performance characteristics in successfully carrying liquid products under a wide variety of shipping and handling conditions Already an award winner the inland van leer monostress drum has won the 1964 euro star packaging Oscar of the European packaging Federation Combining scientific design with practical performance the inland monostress drum merits serious consideration for your packaging program a proven development monostress drums meet conventional 18 gauge steel drum performance requirements they are significantly lower in price when compared to ordinary heavy gauge drums and At 30 pounds are truly lightweight containers easy to handle cheaper to ship thoroughly researched exhaustively tested and now commercially available the inland monostress drum offers important opportunities for lower cost more efficient industrial packaging Monostress a new concept in the world of packaging from inland steel container company

Identifier

F.2010-01-0115

Abstract

Sponsored film made by Goldsholl Associates for the Inland Steel Company. The film illustrates the advances in the company's newly designed standard steel shipping drum, or "Inland Monostress Drum." The industrial design of the drum came about through a 1959 collaboration between the Chicago-based Inland Steel Company and European-based Van Leer Company.

Run Time

0:12:30

Format

16mm

Extent

425 feet

Color

Sound

Optical

Reel/Tape Number

1/1

Has Been Digitized?

Yes

Language Of Materials

English

Element

Distribution Print

Genre

Inland Steel Company “Monostress”

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