1. Material: Ordinary carbon structural steel (Q yield strength), high-quality carbon structural steel (with an average carbon mass fraction of 20/10000), alloy structural steel (with an average manganese mass fraction of about 2% in 20Mn2), cast steel (ZG230-450 yield point not less than 230, tensile strength not less than 450), cast iron (HT200 gray cast iron tensile vires).
2. Common heat treatment methods: annealing (slow cooling in the furnace), normalizing (cooling in air), quenching (rapidly cooling in water or oil), tempering (reheating the quenched part to a certain temperature below the critical temperature, holding for a period of time and then cooling in air), quenching and tempering (the process of quenching+high-temperature tempering), chemical heat treatment (Carburizing, Nitriding, Carbonitriding).
III. Defectum Fasteners: Fractura ex satis viribus; Nimia elastica vel plastic deformatio; Nimia lapsum, slippage, aut overheating de frictione superficiem; Solve nexum;
IV. Deficiendi manifestatio: De defectum in actione variabilis accentus dicitur lassitudine defectum. Characteres: subito fractura post multiple applications quaedam generis accentus; Maximum accentus sub accentus in fracturam est multo minus quam cede terminus de materia; Etiam pro plastic materiae, ibi non significant plastic deformatio cum conteram. Cum determinandum lassitudine terminum, magnitude de accentus, numerum cycles et exolvuntur characteres considerari.
V. Types of Sequelae: Ordinarius relatorum, pipe fila, rectangulum relatorum, trapezoidal relatorum, serrata relatorum.
VI. Basic genera threaded hospites: Boled Contrahentes (Ordinarius Boled Contrahentes, Boped Contrahentes cum CARDINATUS foramina), duplex virens clausa hospites, stupra hospites et stricta stupra hospites.
VII. Anti laxitas in staminibus hospites: friction anti solutam (vere washer, duplex nut, ellipticum sui densis nucis, transversus, subsisto fulloni, rotunda et sulcus nucis, subsisto sole (Planta modum, finem welding solvere (Plantis modum, finem welding Ratio (Punching Mode, finem Welding Ratio, Bonding Mode).
VIII. Modi ad amplio vires fulmine connexiones vitare generating additional inclinatio accentus; Redigo accentus concentration.
IX. Processing scientia post calor curatio, quod praecisione foramina (per foramina) post extinguantur requirere filum secans dispensando; Caecus foramina eget aspera machining ante extinxit et praecisione machining post extinxit. Non praecisione foramina potest fieri in loco ante extinxit (relinquens extinguatur annonas 0.2mm in una parte). Et minimum annonas pro aspera machining ex extinguetur partes 0.4mm et dabatur aspera machining ex non extinguitur partium 0.2mm. Crassitudine coating plerumque 0.005-0.008mm et procedendum secundum pre plating dimensiones.
X. Mechanica perficientur ad Ordinarius seras in eodem gradu paulo altior quam his ad altus-vires seras, sed summus vires seras habent an additional bolts. In robore summi vires fulmina non mentitur in eorum disposito onus-afferentem facultatem, sed in excelsum rigorem, princeps salutem perficientur, et fortis resistentia ad dampnum eorum disposuerat nodos. Essentia eius princeps virtutis est quod durante normalis operatio, in nodi non licuit subire aliqua relativa lapsus, id est, in elastic-plastic deformatio est parvum et nodi rigor est princeps. Core differentia inter altus-vires seras et Ordinarius BOLTS non est fortitudo materialis usus, sed forma vi applicantur. Essentia est num adhibere pre tensio vi et uti static frictio vi resistere tondendas.
Post tempus: Ian-06-2025