Jeneral prentan asye ka pwodwi pa gwo fou elektrik, fwaye louvri oswa konvètisè oksijèn; wo -bon jan kalite asye prentan ak bon kalite oswa pwopriyete espesyal ka fèt pa founo electroslag oswa gwo founo vakyòm. Ranje kontni espesifye nan kabòn, Manganèz, Silisyòm ak lòt eleman prensipal nan asye prentan se etwat, ak konpozisyon chimik la dwe estrikteman kontwole pandan SMELTING. Lè kontni Silisyòm lan wo, li fasil pou fòme defo tankou bul, ak tach blan yo fasil pou rive lè ingot la pa refwadi byen apre yo fin fòje ak woule. Se poutèt sa, matyè premyè pou fusion yo dwe cheche pou retire gaz ak enklizyon otank posib, epi pou fè pou evite surchof nan asye fonn.
Prentan asye dwe peye atansyon espesyal sou dekarburizasyon ak bon jan kalite sifas pandan woule. Lè sifas asye a grav dekarburize, li pral siyifikativman redwi limit la fatig nan asye a. Pou segondè asye prentan Silisyòm tankou 70Si3MnA, yo ta dwe pran swen pou fè pou evite grafitizasyon. Se poutèt sa, pandan travay cho, tanperati a sispann woule pa ta dwe twò ba (Pi gran pase oswa egal a 850 degre) pou fè pou evite rete twò lontan nan ranje tanperati a (650-800 degre) kote grafitizasyon se pi fasil yo fòme.
Springs are used under impact, vibration or long{{0}}term alternating stress, so spring steel is required to have high tensile strength, elastic limit and high fatigue strength. In the process, the spring steel is required to have a certain hardenability, not easy to decarburize, and good surface quality. Carbon spring steel is high-quality carbon structural steel with a carbon content of WC in the range of 0.6 percent -0.9 percent . Alloy spring steels are mainly silicon-manganese steels, their carbon content is slightly lower, and their performance is mainly improved by increasing the silicon content Wsi; in addition, there are alloy spring steels of tungsten, tungsten and vanadium. In recent years, combined with our country's resources and according to the requirements of new technologies for automobile and tractor design, new steel grades with boron, niobium, molybdenum and other elements added to silicon-manganese steel have been developed, which prolongs the service life of the spring and improves the quality of the spring.
