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EVs drive NVH material innovations

In 1988, the Separation Technologies Lab of The Dow Chemical Company in Michigan developed and patented a modified vacuum swing adsorption machine that captures, concentrates, and condenses the organic contaminants from the vent stream, returning a liquid mixture of the chemicals present in the inlet stream. Designed and installed under The Dow Chemical Company environmental program “Waste Reduction Always Pays,” the SORBATHENE units recover and recycle thousands of pounds of chemicals every year that incineration equipment would otherwise destroy as waste. ...In 1988, the Separation Technologies Lab of The Dow Chemical Company in Michigan developed and patented a modified vacuum swing adsorption machine that captures, concentrates, and condenses the organic contaminants from the vent stream, returning a liquid mixture of the chemicals present in the inlet stream. ...Designed and installed under The Dow Chemical Company environmental program “Waste Reduction Always Pays,” the SORBATHENE units recover and recycle thousands of pounds of chemicals every year that incineration equipment would otherwise destroy as waste. The recovered chemicals are valuable to the company and the recycling option avoids the costs of downstream waste processing associated with thermal destruction.

New efforts to improve quality control through the use of Statistical Quality Control techniques were introduced to the Dow Magnesium Extraction Process. All the employees in the magnesium plants were trained in the Statistical Quality Control procedures. ...Successful application has lead to improved chemical purity and reduced variability in the feed process. These improvements were followed by better reduction cell operation, improvements in alloying and casting operations.

The development of a new series of die cast magnesium standards by The Dow Chemical Company is also described in this paper including their compositional design considerations relating to the selection of the modern direct reading emission spectrometer as the analytical instrument of choice.

In this paper we shall introduce a new range of modified Dow Polyamide resins that greatly reduce the above mentioned disadvantages. In comparisons with commercially available nylon 6 and 66 materials we shall illustrate improved warpage behaviour and lower moisture pick-up in combination with excellent chemical resistance to, for example, hot motor oil and ethylene glycol. ...In comparisons with commercially available nylon 6 and 66 materials we shall illustrate improved warpage behaviour and lower moisture pick-up in combination with excellent chemical resistance to, for example, hot motor oil and ethylene glycol. In summation, examples will be provided to illustrate the improved utility of these new, modified Dow Polyamide resins. ...In summation, examples will be provided to illustrate the improved utility of these new, modified Dow Polyamide resins.

This article considers the contributions made by the chemical industry in providing materials suitable for this purpose. Improvements in crash padding, hydraulic fluids, and gas tanks have greatly reduced injuries attributable to impact, fire, and brake failure. ...The close cooperation of the automotive and chemical industries is duly credited for these safety efforts. Emphasis is placed on the need for integration of inspection, driver education, highway design, and traffic laws with enforcing agencies in order to perfect overall in-use protection.

This SAE Aerospace Information Report (AIR) provides an orientation regarding the general technology of chemical oxygen generators to aircraft engineers for assistance in determining whether chemical oxygen generators are an appropriate oxygen supply source for hypoxia protection in a given application and as an aid in specifying such generators. ...Information regarding the details of design and manufacture of chemical oxygen generators is generally beyond the scope of this document.

This practice provides recommendations concerning the chemical milling of aluminum, magnesium, high temperature nickel alloys, titanium alloys, copper alloys, and specialty alloys.

This SAE Aerospace Standard (AS) applies to a portable chemical oxygen generator assembly intended for the following uses: a First aid treatment of aircraft occupants after an emergency descent following a decompression or other emergency condition. b Use by cabin attendants to maintain their mobility after a decompression.

Solid chemical oxygen supplies of interest to aircraft operations are "chlorate candles" and potassium superoxide (KO2).

These results suggest that, under reducing conditions, hydrogen is stored on the catalyst surface whereas under oxidizing conditions oxygen is stored by two different processes. These chemical insights facilitate the development of realistic models for tailpipe emissions from engines which are perturbed from steady state running.

Since the introduction of high purity magnesium die cast alloys, AZ91D and AM60B, many examples can be given of their ability to resist corrosion and accept a variety of decorative finishes. This paper will review the common finishing options available and the requirements for their proper application to die cast parts. The finishing systems employed in a number of commercial applications, past and present, using magnesium will be described.

A Ford APO (now Visteon) / Dow Automotive† team was formed to seek a replacement material / design for the glass filled polypropylene material which would solve the problems. ...The new material system had to meet or exceed current FMVSS 208 crash performance standards, provide improved quality and reduce variable and scrap costs all with a minimum tooling investment. Using Dow PULSE™ PC/ABS resin, the team designed / implemented a new knee bolster system in 12 months.

This document, as referenced in the applicable product specifications in procurement documents, contains: a A catalog of the standard carbon steels, alloy steels (including H-steels), and stainless and heat-resisting steels that are designated by chemical composition, or (for H-steels) by chemical composition and hardenability limits by reference to standard industry documents. b Rules for designating the chemical content of carbon steels, alloy steels, and stainless and heat-resisting steels that are not classified as standard. ...This document, as referenced in the applicable product specifications in procurement documents, contains: a A catalog of the standard carbon steels, alloy steels (including H-steels), and stainless and heat-resisting steels that are designated by chemical composition, or (for H-steels) by chemical composition and hardenability limits by reference to standard industry documents. b Rules for designating the chemical content of carbon steels, alloy steels, and stainless and heat-resisting steels that are not classified as standard.

This specification covers the requirements for surface metal removal of ferrous and non-ferrous metals by milling processes using controlled immersion of parts in chemical etching solutions.

As such, verification of the chemical quality of the potable water supplies on ISS has depended entirely upon the collection, return, and ground-analysis of archival water samples. ...Because of the severely limited down mass on the Russian Soyuz vehicle, only a few potable water samples of less than 250 milliliters were actually returned to the ground with each crew. The chemical analyses that were performed on the returned samples were limited by the small sample volumes.

A 3D-CFD model with detailed chemical kinetics was developed to investigate the combustion characteristics of HCCI engines, especially those fueled with hydrogen and n-heptane.

This SAE Aerospace Standard (AS) applies to performance and testing of solid chemical oxygen generators which produce oxygen at essentially ambient pressure for use aboard aircraft whose cabin pressure altitude does not exceed 40,000 ft (about 12,200 m). ...Portable chemical oxygen devices are covered by AS1303.

., alloy and heat treat condition) allowed for use in chemical process test specimens when requirements call for a generic class of alloy.