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日期:2018-05-29 04:54:18      浏览量:681

封头

      联宏机械是一家专业成熟的石油化工、压力容器的封头生产、制造和销售的公司



      联宏机械多年专注于压力容器封头行业,生产销售各种规格型号封头,可加工规格最小从76*2到最大直径10000*56的封头

 

      我们的客户遍布多个行业,产品广泛应用于石油化工设备、制药设备、食品加工设备、物流仓储设备、精细化工设备、水处理设备、环保设备、工业锅炉及压力容器设备等

 

      我们提供各种规格型号的封头产品:国标的椭圆形封头(EHA)、碟形封头、球冠形封头、平底形封头、锥体封头、半球形封头和球壳板;非标的定制封头、锥形过渡节、冲孔封头、弓形封头、浅碟封头和特大形封头;

      我们依据海外他国标准,制造生产多种外国标准封头:Torispherical head or bottom, Klopper heads (DIN-28011), Korbbogen heads(DIN-28013), spherical caps, flat heads, Flanged only Head, dished heads for low pressure, spherical covers, diffusion heads, cone heads, Cones for Pressure Vessels, PRC heads(NFE 81-101), MRC heads (NFE 81-104), GRC heads(NFE 81-102), elliptical heads 1,9:1 (NFE 81-103), elliptical heads 2:1(ASME), hemispherical heads, Shallow Head, Inverted Dished heads and Inverted Cones...
 

      封头制造及检验标准

      我们通过了ISO9001质量管理体系认证,根据中国特种设备制造许可要求执行并制定了完备的质保体系,从原材料采购、中间过程控制到最终成品检验发货为止的每一步严格控制,确保每一步符合相应的标准制度,只为客户提供高品质的产品。

      根据客户要求定制各种材质、型号封头,我们的工程师全程参与并提供技术支持,确保产品达到要求。

      同时根据要求提供封头表面处理:酸洗钝化、、坡口切割、抛光、喷砂、喷漆、防腐处理等

 

      我们产品制造标准:GB/T25198-2010压力容器封头;GB 150钢制压力容器;GB 12337钢制球形储罐;JB/T 4730承压设备无损检测;JB/T 4734铝制焊接容器;JB/T 4745钛制焊接容器;JB/T 4755铜制压力容器;JB/T 4756镍及镍合金压力容器等

      我们同时依据海外他国标准,制造生产多种标准封头如下:

      We manufactures Heads according to PED 97/23 EC for pressure vessels. The stainless steel material is certificated according to Pressure Equipment Directive (97/23/EC).
The dished and flanged heads are manufactured with PED/ TÜV standard plates aiming the production of pressure machines.

We proceed according to the following manufacturing laws: CODAP, ASME, ADM.

      We manufactures stainless steel tank heads, in order to avoid any pollution from other materials. This point represents another guarantee of quality for all our clients.

 

Referenced norms:
Dished heads are manufactured according to the following norms:
- NF E 81-100 December 1997 – Dished heads, designation, tolerances.

- German tolerances DIN28011 et DIN28013

 

We manufactures the following type of heads:

· PRC Small knuckle radius head N FE 81-101 or Shallow Head

· GRC Large knuckle radius head N FE 81-102 or Torispherical head DIN28011

· Elliptical head N FE 81-103 or Semi Ellipsoidal Head DIN28013

· MRC Medium knuckle radius head N FE 81-104

Edge machining and bevelling are made according to the N FE81-110.


MANUFACTURING CYCLE OF DISHED HEADS ACCORDING TO NFE 81 100

· Calculation of the disc’s diameter

· Disc cutting

· Disc welding, in case of disc in several parts

· Destructive or non-destructive controls (if requested in yourorder)

· Cap pressing process and control of the knuckle radius

· Knuckle radius forming and knuckle radius control

· Edge machining according to NFE 81 110

· Dished head control at the end of the manufacturing process

· Dished head pickling

· Dished head polishing (if requested in your order)

· Openings (if requested in your order)

· Final control before consignment.

 




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