400 mm continuous galvanizing production line

Project name: 0.7-1.7 x 400 mm continuous galvanizing production line

Customer name: bazhou new crown metal products co., LTD

The nature of the project: new project

Undertake: Beijing JieRui general contracting

A time: on December 8, 2012

Production: production on time

Operation: in good condition

A, technical scheme

This technique is based on international popular's Jimmy's law "strip continuous hot galvanizing principle" as the foundation, combined with our previous successful experience in the field of hot galvanizing and the success of the blast furnace gas galvanized case, by my company independent development mature regenerative oxidation of patent technology, patent number ZL2009202466509; Low calorific value gas ZL2009202466829 radiant tube heating furnace; Energy saving radiant tube patent technology, patent number ZL2010205353153; Patent technology of heat recovery technology, patent number ZL2009202466617; Energy saving furnace roller, such as patent number ZL2010205353007 patents technology portfolio, and according to the user's actual situation, in line with the economic, reliable and maintainability principles and design.

Second, the product specifications

Steel grade: ordinary carbon structural steel

Material: Q235, Q195, Q215, 08 al

Coil: 30 508 mm inner diameter, outside diameter 30, 800-1700 - mm

Volume: Max6000 Kg

The strip size: 0.7 1.7 mm thickness

350-450 - mm wide

Three, raw material specification

Material: Q235, Q195, Q215, 08 al

Thickness: 0.7 1.7 mm

Width: Max450mm

Volume: Max6000 Kg

Inside diameter: 30 508

Outer diameter: 30 800-1700 - mm

4 and the process parameters of the production line

Processing speed: 52 ~ 128 m/min TV value is 90

Looping set speed: filling process speed of 130%

Power transmission system configuration: ac frequency conversion speed regulation

Zinc layer thickness adjusting range: 35 ~ 200 g / ㎡ (double) gas knife adjustment

Zinc zinc layer condition: normal flowers, no zinc, zinc flower

Passivation methods: dip coating passivation

Product quality standard: GB/T2518-2008

Production line direction: from left to right (from the operating side)

Five, the main body equipment according to process flow arrangement is as follows:

# 1, 2, feeding the small car to # 1, 2, uncoiler, open-book dao 1, 2 - open book clip send 1, 2 - hydraulic transverse cutting and welding platform - tensioning machine 1 - the entry loop (manual for the two sets of single roll) - tensioning machine 2 - (CPC) - beating in double roller to roll to annealing furnace, the furnace nose - zinc pot - sink roll - air knife - cooling fan to tower on the machine, cooling tower to roll - quenching tank - drain roll - in a double roller (CPC) - tensioning machine 3 - pull machine - tensioning machine 4 to dip coating passivation, hot air drying - export loop - tensioning machine 5 - hydraulic transverse shear - winding pinch (guide) - 1 winding machine (EPC) - 1 discharging car

Through the electronic control system, hydraulic system, pneumatic system and ancillary equipment to realize continuous running.