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谈谈贵州铸造公司?方法选择的原则:

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谈谈贵州铸造公司?方法选择的原则:

发布日期:2018-01-20 作者:贵州铸造公司 点击:

谈谈贵州铸造公司方法选择的原则:

贵州铸造公司

Talk about the principles of the choice of the Foundry Company methods in Guizhou:

1.优先采用砂型铸造 据统计,我国或是国际上,在全部铸件产量中,60~70%的铸件是用砂型生产的,而且其中70%左右是用粘土砂型生产的。主要原因是砂型铸造较之其它铸造方法成本低、生产工艺简单、生产周期短。所以象汽车的发动机气缸体、气缸盖、曲轴等铸件都是用粘土湿型砂工艺生产的。当湿型不能满足要求时再考虑使用粘土砂表干砂型、干砂型或其它砂型。粘土湿型砂铸造的铸件重量可从几公斤直到几十公斤,而粘土干型生产的铸件可重达几十吨。

The 1. priority is sand casting. According to statistics, in China or internationally, 60 to 70% of the castings are produced by sand mold, and about 70% of them are made of clay sand. The main reason is that sand casting is less cost than other casting methods, simple production process and short production cycle. So the engine cylinder body, cylinder head, crankshaft and other castings are produced by the clay wet molding process. When the wet type can not meet the requirements, the use of clay sand table dry sand type, dry sand type or other sand type can be considered. The weight of the clay wet molding sand can be weighed from several kilograms to dozens of kilograms, while the castings produced by the clay dry type can weigh up to dozens of tons.

一般来讲,对于中、大型铸件,铸铁件可以用树脂自硬砂型、铸钢件可以用水玻璃砂型来生产,可以获得尺寸精确、表面光洁的铸件,但成本较高。

Generally speaking, for medium or large castings, iron castings can be made of resin bonded sand mold and steel castings, and can be produced by water glass sand mold. The castings with accurate size and smooth surface can be obtained, but the cost is high.

贵阳铸造公司

Foundry Company in Guiyang

当然,砂型铸造生产的铸件精度、表面光洁度、材质的密度和金相组织、机械性能等方面往往较差,所以当铸件的这些性能要求更高时,应该采用其它铸造方法,例如熔模(失腊)铸造、压铸、低压铸造等等。

Of course, sand casting casting precision, surface roughness, density and microstructure, mechanical properties and material production is often poor, so when the higher performance requirements of castings, should adopt other casting methods, such as casting (lost wax casting), die casting, low pressure casting etc..

2.铸造方法应和生产批量相适应 例如砂型铸造,大量生产的工厂应创造条件采用技术先进的造型、造芯方法。老式的震击式或震压式造型机生产线生产率不够高,工人劳动强度大,噪声大,不适应大量生产的要求,应逐步加以改造。对于小型铸件,可以采用水平分型或垂直分型的无箱高压造型机生产线、实型造型生产效率又高,占地面积也少;对于中件可选用各种有箱高压造型机生产线、气冲造型线,以适应快速、高精度造型生产线的要求,造芯方法可选用:冷芯盒、热芯盒、壳芯等高效制芯方法。中等批量的大型铸件可以考虑应用树脂自硬砂造型和造芯。单件小批生产的重型铸件,手工造型仍是重要的方法,手工造型能适应各种复杂的要求比较灵活,不要求很多工艺装备。可以应用水玻璃砂型、VRH法水玻璃砂型、有机酯水玻璃自硬砂型、粘土干型、树脂自硬砂型及水泥砂型等;对于单件生产的重型铸件,采用地坑造型法成本低,投产快。批量生产或长期生产的定型产品采用多箱造型、劈箱造型法比较适宜,虽然模具、砂箱等开始投资高,但可从节约造型工时、提高产品质量方面得到补偿。低压铸造、压铸、离心铸造等铸造方法,因设备和模具的价格昂贵,所以只适合批量生产。

2. the casting method should be adapted to the production batch, for example, sand casting. A large number of factories should create conditions for the use of advanced molding and core making methods. The production line of the old jolt or jolt molding machine is not high enough, and the workers are labor intensive and noisy. They are not suitable for mass production. They should be reformed gradually. Can be used for small castings, horizontal type or vertical type of production line, high pressure molding machine box real molding production and has high efficiency, covers an area of less; for parts with various box production line, high pressure molding machine air impact molding line, in order to adapt to the rapid and high precision molding production line requirements methods: core making, cold box, hot box, shell core, core making method. Medium size large castings can be considered with the application of resin self - hardened sand molding and core making. Manual casting is still an important method for heavy duty castings produced by single piece and small batch. Manual sculpt can adapt to all kinds of complex requirements and is flexible, and does not require many process equipment. Can Application of water glass sand, VRH water glass sand and organic ester water glass sand, clay, dry type resin self hardening sand and cement sand; heavy castings for a single production, the pit molding method is low cost, fast production. The multi product modeling or split box modeling method is more suitable for batch production or long-term production of stereotyped products. Although moulds and sand boxes start high investment, they can be compensated from saving molding hours and improving product quality. Low pressure casting, die-casting, centrifugal casting, and other casting methods, because of the high price of equipment and mold, so it is only suitable for mass production.

3.造型方法应适合工厂条件 例如同样是生产大型机床床身等铸件,一般采用组芯造型法,不制作模样和砂箱,在地坑中组芯;而另外的工厂则采用砂箱造型法,制作模样。不同的企业生产条件(包括设备、场地、员工素质等)、生产习惯、所积累的经验各不一样,应该根据这些条件考虑适合做什么产品和不适合(或不能)做什么产品。

3. other methods should be suitable for conditions such as the same factory is the production of large machine tool castings, generally uses the method of cores modelling, do not make the appearance and sand box, in the pit of cores; and another factory used the sand box modelling method, and making the appearance. Different enterprises' production conditions (including equipment, site, staff quality, etc.), production habits and experience accumulated are different. We should consider what products are suitable and what products are not suitable for (or can not) do according to these conditions.

4.要兼顾铸件的精度要求和成本 各种铸造方法所获得的铸件精度不同,初投资和生产率也不一致,最终的经济效益也有差异。因此,要做到多、快、好、省,就应当兼顾到各个方面。应对所选用的铸造方法进行初步的成本估算,以确定经济效益高又能保证铸件要求的铸造方法。

4., we must take into account the accuracy and cost of castings. The accuracy of castings obtained by various casting methods is different. Initial investment and productivity are also inconsistent, and the final economic benefits are also different. Therefore, to achieve more, faster, better, and provincial, we should take into account all aspects. A preliminary cost estimate should be made to determine the casting method selected to determine the casting method that has high economic efficiency and can guarantee the requirements of the casting.

贵阳铸造公司首选澳门电子游戏网站。

The first choice of the Guiyang Foundry Company is Guiyang four Tong Casting Co., Ltd.


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