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公司名称:泊头市 卓远机械设备制造有限公司
注册地址:河北省 泊头市交河开发区
传真号码:0317-8031093
联系方式:15369812793 (微信同号)褚连胜
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账号开户银行:中国银行泊头支行
账号:100399943203
农行账号:6228481739059615270
Company name: botou zhuoyuan mechanical equipment manufacturing co.,LTD
Registered address: jiaohe development zone, botou city, hebei province
Fax number: 0317-8031093
Contact information: 15369812793 (WeChat with the same number)  liansheng chu
Postcode: 062151
Enterprise email:1358827475@qq.com
Account Opening Bank: Botou Branch of Bank of China
Account number: 100399943203
Agricultural bank account number: 6228481739059615270

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您的位置:卓远机械 >> 产品展示 >>铸铁平板平台系列

【】 铸铁平台[Cast iron platform]

时间:2019-6-12 17:20:43 作者:网站管理员 点击:7493 次
铸铁平台[Cast iron platform]

铸铁平 板又称铸铁平台,外观基本上是箱体式,工作面有长方形、正方形、圆形等,材料为HT200-300QT400-600,采用刮研工艺,工作面上可加工V形、T形、U形槽、燕尾槽、圆孔、长孔等,是用于工件、设备检测、划线、装配、焊接、组装、铆焊的平面基准量具。

铸铁平 台一定要有精准的平面度,要想有 精准的平面度必须具备一以下几个条件:

1.厚度要求:主要包 括平台上工作面厚度,侧围厚度和高度,以及底面筋板的厚度、高度和密度。

2.材质要求:高强度铸铁HT200-300,硬度:HB170-240

3.制造标准:按JB/T7974-1999制造。

4.人工退火:在回火窑经过600-700度高温退火时效处理。自然时效:按国标标准应该是2-3年自然时效,由于此工序时间太长,企业受 资金周转影响已不可能等待那么长时间,多以激 振器通过振动时效代替。虽然这 种工艺的效果尚未明确,但在国 际上已普遍使用。

5.沙眼与气孔:0级与1级平台 不允许有气孔与沙眼,2级和3级可以 用与平台同材质固体填充气孔沙眼。注意:填充物 的的硬度一定要低于平台本身的硬度。

6.铲刮工艺:人工铲 刮在铸铁平台加工过程中是最重要的工艺,它决定 了铸铁平台的平面度误差大小,以及工 作面的可接触点数。0级板平台在每边为25㎜平方的范围内不少于25点;1级平台在每边为25㎜平方的范围内不少于20点;2级平板平台在每边为25㎜平方的范围内不少于16点;3级平板平台在每边为25㎜平方的范围内不少于12点。铲刮完 成后平台四个边棱倒钝。

7.清砂与涂漆:平台底面清砂要彻底,干净且 喷涂红色防锈漆。侧面要平整后再涂漆,一般涂篮漆或绿漆。

8.包装要求:铁板包 装和木制包装两种形式,平台表 面用塑料膜封装,这种包 装适于平板内陆运输,并有良好的防潮、防震、防锈和 防野蛮装卸等保护平板的措施,以确保安全运抵现场。主要是木质包装,尽量选 用厚质木材覆盖平台上工作面,必要时做全封闭包装。包装前 平台工作面防锈措施一定要做好。

9.铸铁的运输:因为大 型铸铁平台具有载重大的特点,根据这个特点,所以它 的自身的重量也很大,在使用 和运输时要注意,不能和 小型的铸铁量具类的工件一样对待,所以运输要求如下:

(1).为了防 止铸铁平板发生的变形,在吊装铸铁平板时,要用四 根同样长度的钢丝绳同时挂住铸铁平板上得四个起重孔,将铸铁 平板平稳吊装在运输工具上。

(2).将铸铁 平板支承点垫好、垫平,保证每 个支撑点受力均匀,保证整 个铸铁平板平稳。

(3).在平台装车后,检查是否有悬空,如有悬空要垫实,避免振动。平台不 要摞放过高以免挤压变形。

(4).运输平 板时要保证不超载,不超速,不疲劳驾驶,不在天 气恶劣的情况下运输。

10.配件选择:主要是支架选择,支架用材为壁厚1.5-2mm的方钢和角铁,焊接密 度和结构要合理,调节螺栓要旋转通畅。

11.安装调试:铸铁平 板应安装在通风、干燥的环境中,并远离热源、有腐蚀的气体、有腐蚀的液体。铸铁平 板安装时将铸铁平板的各个支撑点用调整垫铁垫好、垫实,由专业 技术人员将铸铁平板调整至合格精度。一般先 用用框式水平仪调平,在用光 学合像水平仪或电子合像水平仪再进行一次平面度误差测量,如有问 题可要求平台生产商来现场铲刮修复。

12.正确使用:铸铁平 台在调试完成后即可使用。室温控制在20±5℃,把平板 的工作面擦拭干净,在确认 没有问题的情况下使用。

(1).铸铁平 板使用时要轻拿轻放工件,不要集 中使用一个区域,尽量均 匀使用整个铸铁平台的有效面积。不要在 铸铁平板上挪动比较粗糙的工件,以免对 铸铁平板工作面造成磕碰、划伤等损坏。工件的 重量更不可以超过平板的额定载荷,否则会 造成工作质量降低,还有可 能损坏平板的结构,甚至会造成平板变形,使之损坏,无法使用。

(2).为了防 止铸铁平板整体变形,使用完毕后,要将工 件从铸铁平板上拿下来,避免工 件长时间对铸铁平板重压造成铸铁平板的变形。

(3).铸铁平 板不用时要及时将工作面洗净,然后涂上一层防锈油,并用防锈纸盖上,用铸铁 平板的外包装将铸铁平板盖好,以防止 平时不注意造成对铸铁平板工作面的损伤。

(4).铸铁平 板按国家标准实行定期周检,检定周 期根据具体情况可为6-12个月。

质量检测:

1、工作表面不应有锈迹、划痕、碰伤及 其他影响使用的外观缺陷。

2、工作表面不应有砂孔、气孔、裂纹、夹渣及 缩松等铸造缺陷。各种铸 造表面应清除型砂、且表面平整,涂漆牢固。各棱边应修钝。在精度等级低于“00”级的平板工作面上,对于直径小于15mm的砂孔 允许用相同的材料堵塞,其硬度 应低于周围材料的硬度。在工作 面上堵塞的部位应不多于四处,其相互 之间的距离应不小于80mm

3、相对两个侧面上,应设置有安装手柄、吊环等 吊装设施的螺纹孔或圆柱孔。设计吊 装位置时应考虑尽量减少因吊装而引起的变动。

4、根据用户要求,在板工 作面上设置螺纹孔或沟槽后,这些部 位不应出现高于工作面的凸起现象。

5、应采用 优质细颗料的灰口铸铁或合金铸铁制造。

6、工作面的硬度应为HB 170-220

7、工作面 应采用刮削工艺,对于“3”级平板 工作面也可以采用刨削工艺,刨削工 作表面的表面粗糙度按轮廓算术平均偏差Ra值应不大于5um

8、应经过 稳定性处理和去磁。铸铁平 板的整体规格最大为4米×8米,大于此 规格可以多块拼接,使用磨损后,可以重 新修刮恢复其精度,可用涂 色法检验零件平面度,具有准确、直观、方便的优点。在经过 刮研的铸铁平板上推动表座、工件比较顺畅,无发涩感觉,方便了测量,保证了测量准确度。

铸铁平板订购咨询:15369812743      15369812793(褚 chu 工)

Cast iron plate, also known as cast iron platform, is basically box-shaped in appearance. The working face has rectangular, square and circular shape. The material is HT200-300 and QT400-600. It adopts scraping and lapping technology. It can process V-shaped, T-shaped, U-shaped grooves, swallow tail grooves, round holes and long holes on the working face. It is a plane reference measuring tool for workpiece, equipment detection, marking, assembly, welding, assembly and riveting welding.

Cast iron platforms must have precise flatness. In order to have precise flatness, the following conditions must be met:

1. Thickness requirements: mainly include the thickness of the working face on the platform, the thickness and height of the side wall, and the thickness, height and density of the bottom gluten plate.

2. Material requirements: high strength cast iron HT200-300, hardness: HB170-240.

3. Manufacturing Standards: Manufactured according to JB/T7974-1999.

4.Artificial annealing: After 600-700 degree high temperature annealing aging treatment in tempering kiln. Natural aging: According to the national standard, it should be 2-3 years natural aging. Because of the long time of this process, it is impossible for enterprises to wait that long because of the influence of capital turnover. Most of them are replaced by vibration aging through vibration exciter. Although the effect of this process is not yet clear, it has been widely used in the world.

5. Trachoma and stomata: No stomata and trachoma are allowed on grade 0 and grade 1 platforms. Grade 2 and grade 3 can be used to fill stomatal trachoma with solid of the same material as platforms. Note: The hardness of the filler must be lower than that of the platform itself.

6. Scraping technology: Artificial scraping is the most important technology in the processing of cast iron platform. It determines the flatness error of cast iron platform and the number of contact points of working face. Level 0 platforms have no less than 25 points in the 25-square range on each side; Level 1 platforms have no less than 20 points in the 25-square range on each side; Level 2 platforms have no less than 16 points in the 25-square range on each side; Level 3 platforms have no less than 12 points in the 25-square range on each side. The four edges of the platform are obtuse after the spade is finished.

7.Cleaning and painting: Cleaning the bottom of the platform should be thorough, clean and sprayed with red anti-rust paint. The side should be smooth and then painted, usually with basket paint or green paint.

8.Packaging requirements: iron plate packaging and wooden packaging are two forms. The surface of the platform is encapsulated with plastic film. This kind of packaging is suitable for inland transportation of flat plates. It also has good measures to protect flat plates such as moisture-proof, shock-proof, rust-proof and barbaric handling, so as to ensure safe arrival at the site. Mainly wooden packaging, as far as possible choose thick wood covering platform working face, if necessary, do fully enclosed packaging. The anti-rust measures of the platform working face before packing must be done well.

9. Transportation of cast iron: Because the large-scale cast iron platform has the characteristics of heavy load, according to this feature, its own weight is also very large. When using and transporting, we should pay attention to that it can not be treated as small-scale cast iron measuring tools, so the transportation requirements are as follows:

(1) In order to prevent the deformation of the cast iron plate, four hoisting holes on the cast iron plate should be hung by four steel ropes of the same length at the same time, and the cast iron plate should be hoisted smoothly on the conveyor.

(2) The supporting points of cast iron plate are padded well and flat to ensure that each supporting point is evenly loaded and that the whole cast iron plate is stable.

(3) After loading the platform, check whether there is suspension, if there is suspension, pad solid to avoid vibration. Platform should not be stacked too high to avoid extrusion deformation.

(4) When transporting flat plates, it is necessary to ensure that they are not overloaded, speeding, driving fatigued and transporting in bad weather.

10. Fittings selection: Mainly support selection, support material is square steel and angle iron with wall thickness of 1.5-2 mm, welding density and structure should be reasonable, adjusting bolt should rotate smoothly.

11. Installation and commissioning: Cast iron plate should be installed in a ventilated and dry environment, away from heat sources, corrosive gases and corrosive liquids. When the cast iron plate is installed, the supporting points of the cast iron plate are fixed and padded with adjusting pads, and the cast iron plate is adjusted to qualified accuracy by professional technicians. Generally, the flatness error is measured by the frame level instrument first, and then by the optical or electronic level instrument. If there is any problem, the platform manufacturer can be asked to scrape and repair on the spot.

12. Correct use: Cast iron platform can be used after debugging. The room temperature should be controlled at 20 +5 C. The working surface of the plate should be wiped clean and used when it is confirmed that there is no problem.

(1) Cast iron plate should be lightly handled when using, do not concentrate on one area, try to use the effective area of the entire cast iron platform as evenly as possible. Do not move rough workpiece on the cast iron plate, so as not to cause knock, scratch and other damage to the working face of the cast iron plate. The weight of the workpiece should not exceed the rated load of the plate, otherwise the working quality will be reduced, the structure of the plate may be damaged, and even the plate will be deformed, so that it can not be used.

(2) In order to prevent the overall deformation of the cast iron plate, after use, the workpiece should be removed from the cast iron plate, so as to avoid the deformation of the cast iron plate caused by the heavy pressure of the workpiece on the cast iron plate for a long time.

(3) When cast iron plate is not used, wash the working face in time, then coat it with rust-proof oil, cover it with rust-proof paper, and wrap it well with the outer packing of cast iron plate, so as to prevent the damage to the working face of cast iron plate caused by negligence in peacetime.

(4) Cast iron plate is periodically inspected weekly according to the national standard, and the inspection period can be 6-12 months according to the specific conditions.

Quality inspection:

1. There should be no rust marks, scratches, bruises and other appearance defects affecting the use of the working surface.

2. There should be no casting defects such as sand hole, gas hole, crack, slag inclusion and shrinkage porosity on the working surface. All kinds of casting surface should be cleaned of sand, and the surface should be smooth, and the paint should be firm. The edges should be blunt. When the accuracy level is lower than "00" level, the same material is allowed to plug the sand holes less than 15 mm in diameter, and the hardness should be lower than that of the surrounding materials. The blocked parts on the working surface shall not be more than four places, and the distance between them shall not be less than 80 mm.

3. Relative to the two sides, threaded holes or cylindrical holes should be provided with lifting facilities such as handle and rings. When designing the hoisting position, it should be considered to minimize the changes caused by hoisting.

4. According to the user's requirements, after setting thread holes or grooves on the plate working face, these parts should not appear higher than the protrusion phenomenon of the working face.

5. Grey cast iron or alloy cast iron with fine grains should be used for manufacturing.

6. Hardness of working face should be HB 170-220.

7. Scraping technology should be adopted in working face. Planing technology can also be used for "3" grade flat face. The surface roughness of planing working surface should be less than 5 um according to the arithmetic average deviation Ra value of contour.

8. It should be treated by stability and demagnetization. The overall specification of cast iron plate is 4 meters *8 meters, which can be joined together by several pieces. After wear and tear, it can be repaired and scraped to restore its accuracy. The flatness of parts can be checked by coloring method, which has the advantages of accuracy, intuition and convenience. After scraping and grinding, the table seat and workpiece are propelled smoothly on the cast iron plate without any astringency, which facilitates the measurement and ensures the accuracy of the measurement.

Company name: botou zhuoyuan mechanical equipment manufacturing co.,LTD
Registered address: jiaohe development zone, botou city, hebei province
Fax number: 0317-8031093
Contact information: 15369812793 (WeChat with the same number)  liansheng chu
Postcode: 062151
Enterprise email:1358827475@qq.com
Account Opening Bank: Botou Branch of Bank of China
Account number: 100399943203
Agricultural bank account number: 6228481739059615270

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