GB 26485-2011 English PDF

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GB 26485-2011: Equipment for uncoiling, levelling and shearing Line -- Safety requirements
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Basic data

Standard ID: GB 26485-2011 (GB26485-2011)
Description (Translated English): Equipment for uncoiling, levelling and shearing Line -- Safety requirements
Sector / Industry: National Standard
Classification of Chinese Standard: J62
Classification of International Standard: 25.120.10
Word Count Estimation: 30,311
Date of Issue: 2011-05-12
Date of Implementation: 2012-01-01
Quoted Standard: GB 2893; GB 2894; GB/T 3766; GB 4584; GB 5226.1; GB/T 7932; GB/T 8196; GB/T 9969; GB 12265.3; GB/T 15706.1; GB/T 15706.2-2007; GB 16754; GB/T 16855.1; GB/T 16856.1; GB 17120; GB 17888.1; GB 17888.2; GB 17888.3; GB 17888.4; GB 18209.2; GB/T 18831; GB/T 19876; GB/T 23281; GB 23821
Regulation (derived from): Announcement of Newly Approved National Standards No. 6 of 2011
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This Chinese standard specifies the uncoiling leveling shearing line providers and users and other parties in the design, manufacture, assembly, use and maintenance of the safety requirements. This standard applies to uncoiling leveling shearing line in a variety of stand-alone and mechanical combination (see Appendix A). This standard also applies to a shearing line uncoiling leveling auxiliary devices. This standard does not apply to uncoiling leveling shearing line associated erosion, electroplating, plating, paint, lubrication and surface pre- processing machinery and equipment.

GB 26485-2011: Equipment for uncoiling, levelling and shearing Line -- Safety requirements

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Equipment for uncoiling, levelling and shearing Line.Safety requirements ICS 77.120.20 H61 National Standards of People's Republic of China GB 26488-2011 Magnesium alloy die casting production safety norms Issued on. 2011-05-12 2012-05-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard 3.2,4.1,5.3,6.1.5,7.2,10.1 bar is mandatory, the rest are recommended. The standard proposed by China Nonferrous Metals Industry Association. This standard Nonferrous Metals by the National Standardization Technical Committee. This standard is drafted by. Chongqing Boao Magnesium Co., LK Group Granville Technology Co., Ltd., China Nonferrous Metals Industry Standard Associate Institute of Metrology and Quality. Participated in the drafting of this standard. National Engineering Research Center of magnesium alloy, Nanjing Yunhai Special Metals Co., Ltd., Shanxi Wenxi silver magnesium (Group) Co., Ltd., Beijing Guangling Jinghua Science and Technology Co., Ltd., Beijing Nonferrous Metal Research Institute. The main drafters of this standard. Caojian Yong IMPERIAL Tao, Liu Zhaoming, Tsai Chi Heng, Yang Xiaojuan, Zhang. GB 26488-2011 Magnesium alloy die casting production safety norms

1 Scope

This standard specifies the production process of magnesium alloy die casting machines, peripheral equipment, furnaces, personal protection, related to the building structure and layout, Magnesium alloy waste, plant safety and other safety standards. This standard applies to all aspects related to magnesium alloy high pressure casting process.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 11651 Personal protective equipment selection specification GB 18218 hazardous chemicals major hazard identification GB/T 20926 magnesium and magnesium alloy scrap GB/T 28001 Occupational Health and Safety Management System

3 General Provisions

3.1 magnesium alloy die design and construction companies (including new and expansion) shall comply with the relevant national architectural design specification requirements of this standard, Does not meet the standard of existing enterprises, should develop security technologies action plan, in order to meet the requirements of production. 3.2 Corporate accordance with relevant provisions of GB 18218 and GB/T 28001 explosion of the enterprise, and other major fire hazards and functional Industry hazard factors identification, assessment, to determine the type, degree of harm dangerous hazards, the development of effective management control measures. Managers should Employee representatives and safety inspections to correct the unsafe operation and environment, to conform to the relevant provisions. Production sites should not be smoking. Should not be The use of fire operations, if you do need to use an open flame shall be approved by the manager or security officer at the scene confirmed, no security risks after listing operations. 3.3 enterprises should be combined with magnesium alloy die-casting production characteristics, the development of the enterprise security measures implementing rules and safety checklist, according to security checks Watch carefully checked. Enterprise checked at least once a month, shop at least once a week. Enterprises should do a good job of production safety education, general Magnesium alloys and safety knowledge and safety regulations, so that workers understand the characteristics of the safe production, professional staff to deal with technical and operational training, And after evaluation, passing behind the prospective job. Enterprises should establish relevant security plan and organize exercises. 3.4 workshop near the top should have good ventilation, ventilation can not be provided in the melting furnace to prevent leaks. All security Facilities without the approval of the competent authorities, shall not be removed or diverted to other uses. 3.5 Enterprises should investigate all accidents and negligence, shall record the findings and corrective measures have to track.

4 individual protection and rescue

4.1 Production personnel shall GB/T 11651 of the relevant provisions, the use of labor protection. Previous operators during the operation, press the Wear protective equipment requirements above, persons not wearing protective equipment is not allowed near the area of operation, are not allowed to operate the equipment. 4.2 in the workplace should use cotton clothing products, labor protection, production personnel should not be worn next to the skin making chemical fiber fabric of underwear. 4.3 non-automatic furnace feeding, should wear protective masks. 4.4 into the production site personnel should wear protective glasses. GB 26488-2011 4.5 Enterprises should develop accident rescue plan shall be approved by the competent authorities. 4.6 should be under the guidance of the local fire department, for all employees regularly put out the fire and rescue training. 5 building (structure) of the structure and layout 5.1 Buildings should be a single layer construction, lightweight roof structure is appropriate, you should use non-combustible materials, flooring materials or else water, heat. 5.2 equipment, beams, shelves, walls and other surfaces should have a structure easy to clean, and should not have an upward stitching plane. 5.3 Workshop sprinkler systems should not be used if the existing itself, the valve should be locked and wherein the water drained. 5.4 shall be a sufficient number of work area, setting a clear road signs and lighting emergency evacuation routes.

6 magnesium alloy die casting machine

6.1 Basic Safety Requirements 6.1.1 front door die-casting machine, after door, plate cover, tailgate cover, rear hinged cover plate, front cowl hinge, the hinge end of the cover plate, should have the necessary security Protection. Installation 6.1.2 magnesium alloy die-casting equipment should be in accordance with the requirements of the instructions of the equipment, equipment installation, when the first operation, should be the first point Jog motor to observe whether the motor rotation direction consistent with the direction of rotation allowed to the pump. Pump motor only in the manual mode is activated. 6.1.3 injection plunger lubricants should be water-soluble products, when using oil injection plunger lubricants, should pay attention to fire prevention. 6.1.4 die-casting mold temperature control to avoid the use of an aqueous medium heating (cooling) should be used in water-free oil heating (cooling) mode, and having Oil thermal protector mold temperature. 6.1.5 The operator shall at all sure that the machine safety features intact circumstances can start operating the machine. To ensure that the die-casting Before and after the safety door is closed, the operator should not stand in the parting surface. During operation, the operation of the workers should be thoroughly cleaned each injection nozzle, and note View Police punch is off or leaks. 6.1.6 The longer shutdown should shut off the main power supply, cooling water, compressed air and fluid release valve, the machine can not twist the arm straight locks clamping down Death, especially in the mold heating process. 6.1.7 Operation when found problems and failures is not allowed without changing the setting parameters of the technology and machinery. Die-punch should be used Piqing punch. 6.2 Basic Operation die casting machine safety norms 6.2.1 casting mold should be adjusted in manual mode, the installation of the mold should be front and rear safety door safety door open, and set a Key Selector beginning to "ON" to ensure that the mold, mold opening speed is low, the pressure is low pressure operation. 6.2.2 In the course of their work, the operator should stand when the plunger after the molten metal from the mold parting line injection on the human body without causing Guarding position hazards. 6.2.3 For operations workers into the casting mold for casting mold cavity surface was observed on the surface of the mold or repair and cleaning, Should press the emergency stop switch, the dangerous actions that might occur completely cut off. 6.2.4 For hot chamber die casting machine, injection around the mouth of the bezel not arbitrarily removed. In order to reduce the risk of molten metal splash. As for maintenance, When maintenance or removal and replacement requires the injection nozzle or removing the baffle, should be fully recovered after the order for production. 6.2.5 Isochronous it should die casting magnesium alloy cake is cooled to no risk of explosion, only the top of the casting mold. And immediately to the die-casting Thicker pieces of die-casting parts for each spray release agent. 6.2.6 When the machine is running, the operator should not touch the moving parts of the machine, particularly mechanical clamping devices, high-speed injection mechanism moving part Member. For safety-related moving parts separator and allowed removed. 6.2.7 regularly check the protective device is functioning properly, and when there guard function fails, then the repair should function makes Machines. After servicing machine under any circumstances, deal with mold or other ancillary equipment, energy should be completely closed to lock into the machine work Make. Fault repair shall be put up warning signs. GB 26488-2011 6.3 electrical control system safety regulations 6.3.1 Electrical safety control system should have the function of security doors, emergency stop safety protection and power protection. 6.3.2 The operator not in direct contact with exposed live parts, wires and components, to avoid the risk of electric shock. 6.3.3 magnesium alloy die casting machine in all operating table mounted red with mechanical self-locking function of the emergency stop switch. When the magnesium alloy die casting machine When an exception occurs, the operator should quickly press the emergency stop switch. Only anomaly magnesium alloy die-casting machine to confirm completely ruled out only after the solution In addition to mechanical self-locking state of the emergency stop switch. 6.3.4 magnesium alloy die casting machine is designed with a variety of hazardous area protection. Such as mechanical clamping devices, guards, security front door, security door Guards, guard, and so flying material. These guards with electronic control and monitoring functions, when all the guards in a predetermined position, magnesium Alloy die casting machine will be clamping action. Function should be tested before the start of production of these security guards to ensure effective. Electric monitoring 6.3.5 magnesium alloy die casting machine guard is very important. The operator shall be arbitrarily dismantle all magnesium alloy die casting machine Electrical switching apparatus and species protection in the circuit shorted these signals could cause dangerous situations occur. 6.4 Hydraulic systems and Qigong 6.4.1 accumulator machine should be used in a purity of not less than 99.995% nitrogen, inflatable methods and pressure parameters in strict accordance with the instructions. 6.4.2 to the machine perfusion tank hydraulic oil, hydraulic oil is required to confirm the added oil is consistent with the description. Hydraulic oil filter perfusion subject Infusion device to the fuel tank. 6.4.3 before starting the pump, must first check the hydraulic oil temperature, hydraulic oil temperature is below the operating temperature allows the machine specification limit shall be pre heat. And pump load operation for some time after the loading operation. 6.4.4 should not stop the work of the high-pressure discharge vessel pressurized oil injection. When the high pressure discharge residual gas in the container or operator should avoid high Pressure injection direction of the gas. 6.4.5 regularly check the temperature of the hydraulic oil tank, when the oil temperature exceeds 55 ℃, should immediately stop checking reasons. 6.4.6 regularly check pressure vessels, at least once a year to check the external macro cracks, once internal testing and inspection every two years, every three Conducted a pressure test to check. For more than 10 years of pressure vessel, once a year the internal and external checks. 6.4.7 Pressure vessel pressure at each operating cycle of the machine respond when major changes are subject to check and investigate the cause. 6.4.8 accumulator should be installed in easy maintenance position, and all the pressure accumulator elements are connected should be strong and safe. Before maintenance work begins Response to relieve pressure accumulator, the accumulator should not be modified in any machining, welding or other measures. 6.4.9 pressure tubing should be used for more than 200 ℃ temperature metal clad with hydraulic hose, and then coated with an outer thermal sleeve. Tube connection should be used Determine the correct fitting and sealed to prevent leakage, ensure sufficient movement stroke to prevent friction between the pipeline and cause danger.

7 Magnesium alloy furnace and peripheral equipment

7.1 Each furnace should be configured with a special magnesium alloy fire extinguisher (D level or cold metal). 7.2 Magnesium alloy furnace shall be equipped with fully enclosed gas protection and automatic casting system. 7.3 ingot feeding should be dedicated before preheating furnace, the use of a preheating furnace heat shall ensure that the magnesium alloy ingot is preheated to above 120 ℃, no rot Corrosion spots, oil. Mold, nozzle and radio channels feeding tube before re-use or every time a new boot after the shutdown should be preheated to 150 ℃. The addition of magnesium alloy ingots and slag door open every time 7.4 should be as short as possible. Not allowed to rust, not preheated Cleaner tool Operation, cleaning out the slag and the melt mixture into slag can be sealed bucket, and put out the fire process. 7.5 The initial heating rate of the furnace should be controlled at 50 ℃/h ~ 80 ℃/h, by the melting of the furnace thermocouple for temperature control. achieve When magnesium ingot melting temperature zone 500 ℃ ~ 600 ℃, heating rate of control at 50 ℃/h or less. 7.6 furnace should overheat protection device, the furnace should be equipped with a remote control switch, for emergency disconnection purposes. Control systems and protection of the furnace gas Alarm system should be the appropriate means, there should be a crucible furnace leak alarm device. Periodically check the gas supply line and mixing device has vent leak. SF6 gas cylinders or other place shall create holder, or a chain fixed. GB 26488-2011 Book GB 26488-2011 7.7 every three months to once a crucible wall thickness, once the thickness of the crucible is less than half the original thickness, it should be replaced. Should be established so that the crucible With life record, detailed records of its material, thickness, inspection records and other information. 7.8 does not allow the furnace in working condition will be lifting operations. Around 7.9 pickup robot should be set within the protective fence and avoid straying into the robot operating range. 7.10 Magnesium alloy die casting machine using both hands to mold control, the operator should use both hands simultaneously operating two clamping button. 8 magnesium alloy casting cleaning, polishing 8.1 cleaning, polishing magnesium alloy production sites should be equipped with special fire extinguisher (D level or cold metal), dry sand, covering agent. 8.2 magnesium alloy casting cleaning, grinding venues should use explosion-proof and explosion-proof electrical switches. 8.3 sanding dust generated does not permit direct evacuation should be carried out to collect wet. Exhaust pipes once a month to clean up, clean-up process does not Metal tools should be used. 8.4 exhaust pipe should be anti-static treatment. 8.5 pairs of production site once every 2h clean, to avoid dust accumulation. The operator per hour should be a protective equipment cleaning, Prevent dust accumulated on the protective equipment.

9 store magnesium alloy materials and wastes

9.1 magnesium alloy materials into the plant should check the packaging is damaged, if there is rain and moisture phenomenon. If so, it should be dried after use. 9.2 magnesium alloy scrap is stored according to the provisions of GB/T 20926 performed. 10 fire-fighting facilities 10.1 The use of magnesium alloy extinguisher (D level or cold metal), dry sand, covering agent put out the fire, the water should not be used, class A, B, C fire It is fire. 10.2 agent shall be placed in obvious places easily accessible and regular checks to ensure drying. 10.3 covering agent should be stored in airtight, easy to open the bag. Fire fighting equipment and fire extinguishing agent should be readily available. 1102- Rights Proprietary Rights Reserved ISBN. 155 066 · 1-43201 ......

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