BED FRAME FABRICATION FOR HEAVY DUTY MACHINE TOOLS OR UNIQUE OF HIGH STRENGHT MATERIALS QUEND 700 [309049]

BED FRAME FABRICATION FOR HEAVY DUTY MACHINE TOOLS OR UNIQUE OF HIGH STRENGHT MATERIALS QUEND 700

[anonimizat]-Napoca, [anonimizat]-Napoca, Romania

e-mail: [anonimizat], [anonimizat]

ABSTRACT

Concluzii

Nașterea variantei 3 s-a datorat faptului efectuari diferitelor incercari facute la varianta 2 in care s-a observat scaderea considerabila a proprietatilor mecanice asupra materialului supus la temperaturi de peste 550 °C .

Fig.19. Rezultatele testelor de duritate;

5. CONCLUZII Quend is recommended for the following applications: ——truck chassis;

——lifting equipment;

——handling and charging

Datorită scăderi proprietătilor mecanice a virolei in urma incalzirilor care au avut loc in continuare s-a facut teste pentru incercarea de a ridica proprietatile mecanice cat mai apropriate de cele din starea de livrare.

[anonimizat]. [anonimizat], forced air or inert gases such as nitrogen.

[anonimizat] 0.22wt pct C microalloyed steel were investigated. The microalloyed steel samples were austenitized and quenched to produce a lath martensite followed by annealing in intercritical region (á+ë) and subsequently quenched to produce a [anonimizat]. The specimens were subsequently tempered at temperatures of 250, 350 and 450 C for 1 hour. [anonimizat] o and impact toughness properties of these steels were analyzed and compared with the microalloyed steel that were conventionally quenched and tempered. [anonimizat].

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