GB/T 50436-2017 in English
VALIDStandard for design of wire rod hot rolling mills
- Issued on:2017-10-25
- Implemented on:2018-05-01
- File Format:PDF
- Delivery:Via email within 5 business days
$621.00
| Standard No: | GB/T 50436-2017 |
| Document status: | VALID |
| Title in English: | Standard for design of wire rod hot rolling mills |
| Title in Chinese: | 线材轧钢工程设计标准 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 5 business days |
| Issued on: | 2017-10-25 |
| Implemented on: | 2018-05-01 |
| Superseding: |
GB 50436-2007 Code for design of technology of wire rod mill
|
| Professional Classification: | GB-National Standard |
| Related Keywords: | side-out step-by-step type hourly heating capacity ≥ rolling mill output finishing mill top-cross
standard revision mills pre-finishing mill engineering construction standard revision plan rolling process |
| Related Topics: | engineering design
Standard wire Standard wire rolled steel GBT50436 GB/T 50436-2017 wire Mother liquor concentration design for standard curve Optical path design standard process |
Introduction
Background of Standard Revision and Technological Evolution
This standard was revised in accordance with the requirements of the 2013 Engineering Construction Standard Revision Plan of the Ministry of Housing and Urban-Rural Development (Jianbiao [2013] No. 169), led by MCC Eastern Engineering Technology Co., Ltd., in collaboration with a number of metallurgical design institutes and steel companies. Compared with the old version of the standard, this revision mainly reflects three major technological breakthroughs:
| Revision dimensions | 2002 version | 2012 version |
|---|---|---|
| Chapter structure | Chapter 10 | Chapter 14 (newly added chapters on automation, public auxiliary facilities, etc.) |
| Product specifications | φ5.5-20mm | φ5-26mm (expanded scope of application) |
| Process requirements | Controlled rolling and controlled cooling not specified | Mandatory requirementsTemperature controlled rolling + online diameter measurement |
Analysis of core process requirements
Raw material specifications
Chapter 6 of the standard clearly stipulates: Continuous casting billets are preferred (hot charging rate of alloy steel ≥30%, ordinary steel ≥50%). The cross-sectional dimensions of billets are divided into the following types according to the steel grades:
- Non-/low-alloy steel: 150×150mm~165×165mm
- Alloy steel: 120×120mm~200×200mm
Rolling process
Typical case: A steel plant adopts a double-line production line designed according to this standard and achieves an annual output of 800,000 tons through a headless continuous layout. The key process control points include:
- Micro-tension rolling between roughing/medium rolling mills
- Pre-finishing mill tension-free rolling
- Post-finishing mill configurationWater cooling box + roller-type loose coil cooling
Key indicators for equipment selection
| Equipment type | Selection requirements | Technical parameters |
|---|---|---|
| Heating furnace | Side-in and side-out step-by-step type | Hourly heating capacity ≥ rolling mill output |
| Finishing mill | Top-cross 45° arrangement | Cantilever roller ring mill |
| Cooling equipment | Delayed roller type | Leideburite steel requires a transformable intermediate coil |
Implementation suggestions
Electrical automation
Chapter 11 stipulates: The power supply and distribution system must be equipped with a harmonic suppression device (PCC point harmonic voltage ≤ GB/T14549 limit), and it is recommended to use:
- AC variable frequency speed regulation system (main drive)
- Industrial Ethernet communication (L1/L2 system)
- Infrared thermometer + electromagnetic flowmeter (key instrument)
Safety and environmental protection
Chapter 14 clearly states:
- The heating furnace area must be equipped with a CO monitoring and alarm device
- Chimney height ≥50m and 3m higher than surrounding buildings 200m away
- Noise control must comply with GB12348 factory boundary standards
Loading PDF document...
Error loading PDF. Please make sure the file is valid and try again.
We also recommend
-
GB/T 2349-1980 in English
power systems and components; Cylinders; Basic series of piston strokes
1980-01-02 -
GB/T 26225-2010 in English
Information technology—Mobile storage—General specification of flash disk
2011-01-14 -
GB/T 5193-2020 in English
Method of ultrasonic inspection for wrought titanium and titanium alloy products
2020-03-06 -
GB/T 821-2018 in English
Square set screws with chamfered end
2018-09-17 -
GB/T 15972.49-2021 in English
Specifications for optical fibre test methods—Part 49: Measurement methods and test procedures for transmission characteristics—Differential mode delay
2021-10-11 -
GB/T 40796-2021 in English
Corrosion of metals and alloys—Guidelines for applying statistics to analysis of corrosion data
2021-10-11 -
GB/T 37-1988 in English
Bolts for T-Slot
1988-06-24 -
GB/T 38687-2020 in English
Rubber and plastics machinery—Communicating protocol for auxiliary equipment
2020-03-31 -
GB/T 18426-2021 in English
Rubber-or plastics-coated fabrics—Low-temperature bend test
2021-10-11 -
GB/T 223.49-1994 in English
Methods for chemical analysis of iron, steel and alloy Extraction separation-chlorophosphonazo mA spectrophotometric method for the determination of the total rare earth content
1994-09-26
