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弹簧淬火等方面的处理事项
文章来源:http://www.sdzbthc.com/ 发布时间:2022-05-24 浏览次数:
关于弹簧的一些处理方式,有些朋友也是不清楚的,小编整理了一篇有关的内容,希望能够给您帮助,下面来看看弹簧淬火等方面的处理事项吧。
Some friends don't know about some treatment methods of spring. Xiaobian has sorted out a relevant content and hopes to help you. Let's take a look at the treatment of spring quenching and other aspects.
淬火
quench
弹簧淬火加热时,应特别注意防止表面脱碳、过热或过烧、晶界氧化等缺陷,必须在保持气氛或可控气氛的炉内加热,或保养涂层应涂在弹簧上,然后暴露。根据钢种用水或油加热然后冷却。
When the spring is quenched and heated, special attention shall be paid to prevent surface decarburization, overheating or overburning, grain boundary oxidation and other defects. It must be heated in the furnace with maintained atmosphere or controllable atmosphere, or the maintenance coating shall be coated on the spring and then exposed. Heat with water or oil according to the steel grade and then cool.
但是,为了减少弹簧的变形,防止开裂,提高强抗性,马氏体分级淬火和贝氏体等温淬火在生产中得到了广泛的应用,也可以进行贝氏体等温淬火。
However, in order to reduce spring deformation, prevent cracking and improve strong resistance, martensite step quenching and bainite isothermal quenching have been widely used in production, and bainite isothermal quenching can also be carried out.
强韧体转变停止线,保留一部分奥氏体,然后继续冷却至室温,使这部分奥氏体转变为马氏体,在组织上兼有下贝氏体和奥氏体,在性能上兼具强度和耐性,是一种强化增韧的方式。这些处理方法也需要进行回火处理,因为这种热处理的冷却能力有限,而且这些淬火工艺只能用于截面较小的弹簧。
A part of austenite is retained at the stop line of strength and toughness transformation, and then cooled to room temperature to transform this part of austenite into martensite. It has both lower bainite and austenite in structure and strength and resistance in performance. It is a way of strengthening and toughening. These treatments also require tempering because the cooling capacity of this heat treatment is limited, and these quenching processes can only be used for springs with small cross-section.
山东弹簧厂
退火
annealing
各种圆钢和硬钢丝用于弹簧。为便于进一步冷拔或切削,必须进行软化或球化退火,以降低材料的硬度,改善其切削性能或提高冷变形能力。弹簧材料应在保护气氛的炉中加热退火,以防止表面严重氧化或脱碳,退火组织应为球形珠光体,硬度约为180HB。
Various round and hard steel wires are used for springs. In order to facilitate further cold drawing or cutting, softening or spheroidizing annealing must be carried out to reduce the hardness of the material, improve its cutting performance or improve its cold deformation ability. The spring material shall be heated and annealed in a protective atmosphere furnace to prevent serious oxidation or decarburization of the surface. The annealed structure shall be spherical pearlite with a hardness of about 180hb.
规范化
Standardization
对于一些弹簧,如扭杆弹簧,在热加工过程中很容易造成排列和性能不均匀,产生较大的内应力。采用正火可以达到使排列均匀细密,消除内应力,便于加工成型的目的。
For some springs, such as torsion bar spring, it is easy to cause uneven arrangement and performance during hot processing, resulting in large internal stress. Normalizing can make the arrangement uniform and fine, eliminate internal stress and facilitate processing and molding.
回火
tempering
弹簧淬火后应及时回火,以降低硬度和脆性,降低淬火内应力。回火加热均匀,回火脆性弹簧钢简单呈现。回火加热后,应适当迅速冷却。
The spring shall be tempered in time after quenching to reduce hardness, brittleness and quenching internal stress. Tempering heating is uniform, and tempering brittle spring steel is simple. After tempering and heating, it shall be cooled appropriately and quickly.
山东弹簧厂厂家提醒,弹簧材料为钢和有色金属,其中大部分为钢,进给状态包括棒材、线材、片材和带材。有的在热轧、冷轧、冷拔后进行退火、淬火和/或贝氏体等温淬火,在热处理前制成弹簧。
Shandong spring factory manufacturers remind that the spring materials are steel and non-ferrous metals, most of which are steel. The feeding state includes bar, wire, sheet and strip. Some are annealed, Quenched and / or bainite isothermal quenched after hot rolling, cold rolling and cold drawing, and made into springs before heat treatment.
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Our spring molding products will definitely make you feel value for money. We sincerely welcome interested friends to consult and buy www.sdzbthc.com com!