Engineering plastics

Leona™ for suction blow molding

Leona™, a material for suction blow molding, creates new possibilities for hollow parts.

Leona™ is a material which, in combination with suction blow molding, provides excellent resistance to heat aging (up to 230ºC) and stable formability for turbo ducts, which are required for long-lasting heat resistance. Leona™ material can also be used in cooling pipe for batteries, inverters, and other parts that require hydrolysis resistance.

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Engineering plastics

Leona™ for suction blow molding

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QOur company does not have a suction blow molding machine. Can we conduct a trial of suction blow molding?

A Our Fuji Factory is equipped with a suction blow molding machine. In response to your request, we can conduct a trial of suction blow molding, or you can visit the factory to watch how the machine works. In addition, we have prototype molds for turbo ducts (with a large diameter) and cooling pipes (with a small diameter) which can be used at the site.
Suction blow molding

QCan you analyze suction blow molding by using CAE?

A We are participating in an international consortium for the development of CAE for suction blow molding. Therefore, we can propose the optimum structure and molding conditions by utilizing prior CAE molding analyses, such as analysis of plate thickness distribution and torsion.

QThere are various manufacturing methods for pipes, but I would like to know which one is the best.

A In addition to suction blow molding, we can propose the optimum manufacturing method according to the required performance of various pipes. Such manufacturing methods include WIT (water injection molding), RFM molding (RP TOPLA floating core molding), and extrusion molding.
Merits

QI would like more detailed data on resin for suction blow molding.

A In addition to general physical properties, we can provide heat aging resistance properties at each temperature, pressure resistance evaluation results of chemical-resistant parts (in a blow-by test), and molding analysis examples.

QI would like to know the cost difference between current manufacturing method and suction blow molding.

A We have examples that estimate the costs of the current method (e.g. extrusion molding [PA12]) and the suction blow molding method (our material), so you can check the costs in advance.

QCan you supply materials worldwide?

A We are already in compliance with the environmental regulations in each country, and we can supply materials worldwide by manufacturing them at each of our compound production bases.

QIs it possible to insert brackets or other items during suction blow molding?

A Yes, it is.

QIs adhesion possible?

A Yes, it is. We use a vibration welding method or an IR welding method to achieve good adhesion to other resin parts.

QWhat is the color?

A It's black.

QWhat are the low-temperature characteristics of Leona™?

A It shows good impact resistance at -30ºC, so there is no problem in using it at a low temperature.

QWhat is the amount of glass fiber contained in Leona™?

A Basically, the amount of glass fiber contained in highly heat-resistant Leona™ products is 20%. We can adjust the content according to your request.

Leona™ is suitable as the resin material of hollow parts that require strong resistance to heat aging (up to 230ºC) and degradation such as turbo ducts and cooling pipes. Using Leona™ for these applications will also lead to weight and cost reductions.

Leona™ is suitable as the resin material of hollow parts that require strong resistance to heat aging (up to 230ºC) and degradation such as turbo ducts and cooling pipes. Using Leona™ for these applications will also lead to weight and cost reductions.

Feature01

Excellent resistance to heat aging

In a heat aging resistance test in which Durelia, a heat-resistant grade of Leona™, was tested at 230ºC for 3,000 hours, it maintained at least approximately 80% of its tensile strength. As the test result shows, it can be applied to parts which are required to endure high temperatures. Such characteristic contributes to assure toughness under pressure resistance test (230ºC) of molded products.


Feature02

Excellent hydrolysis resistance

The hydrolysis-resistant grade products have excellent hydrolysis resistance based on the achievements and knowledge which have been obtained through injection grade products such as radiator tanks.

Feature03

Product designing

Asahi Kasei supports the design of products created by suction blow molding. Utilizing CAE stress analysis, Asahi Kasei contributes to the design of pressure-resistant parts.

Usage example01

Application to turbo ducts

Taking advantage of the three-dimentional freedom in shapes derived from suction blow molding which requires high heat resistance, Leona™ can achieve the required layout or structure without any compromise. In addition, Asahi Kasei evaluates pressure resistance of turbo duct parts at high temperatures to assure long term reliability.

Usage example02

Cooling pipes

Leona™ enables the three-dimentional freedom in shapes while ensuring high reliability such as hydrolysis resistance of cooling pipes for electrical parts, including batteries and inverters.

Contribution to the environment

Your company can use Leona™ resin for suction blow molding such as lightweight components or heat-resistant components, contributing to global environmental load reduction.
Leona™ resin for suction blow molding does not contain substances subject to RoHS Directive.

RoHS Directive:(Directive on the Restriction of the use of certain Hazardous Substances in electrical equipment)
In Europe, since July 1, 2006, the RoHS Directive has been enacted to restrict the use of hazardous substances in electrical and electronic equipment. The Directive regulates the use of six harmful substances: Lead, mercury, cadmium, hexavalent chromium, PBB, and PBDE.

The raw materials of Leona™ also comply with other regulations including the REACH and the TSCA. Contact us for further information on conditions such as compliance with the latest REACH SVHC List.

REACH:Registration, Evaluation, Authorization and Restriction of Chemicals
The REACH Regulation is the comprehensive regulations of the European Parliament and the European Council on the registration, assessment, authorization, and restriction of chemicals, which entered into force on 1 June 2007.
TSCA:Toxic Substances Control Act
U.S. law for regulating harmful substances. Law concerning the regulation of harmful chemical substances.

Further details

https://www.asahi-kasei-plastics.com/en/products/leona/

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