Recently, China National Heavy Duty Truck Group Jinan Haowo Bus Co., Ltd. (hereinafter referred to as the producer) filed a recall plan with the AQSIQ according to the requirements of the Regulations on the Management of Defective Automobile Product Recall, and decided to start from May 29, 2015. A total of 561 vehicles of the Yellow River brand of all 12 models produced from April 2013 to April 2015 were recalled.
Use and performance of Graphite electrodes
use
Used in steelmaking electric arc furnace, refining furnace, as conductive electrode; Used for industrial silicon furnace, phosphorus furnace and corundum furnace, as conductive electrode.
performance
High resistance to thermal shock and high mechanical strength
grade
High power Graphite Electrode (SHP) high power graphite electrode (UHP) with high power graphite electrode (HP) with high power graphite electrode (R
Precautions for use of graphite electrodes
1. According to the capacity of the electric furnace and the load of transformer, the grade and diameter of the electrode are suitable
2. When loading the electric furnace, the bulk charge shall be placed in the bottom of the furnace so as not to break the electrode. In the process of smelting, the lime should not be conductive. Large masses of objects are concentrated directly below the electrode, otherwise it will affect the electrode and even cause the electrode to break.
3. Attention should be paid to the position of the furnace cover. If the furnace cover is offset, the cover of the furnace will be blown on the lifting electrode, causing the electrode to be damaged.
4. When connecting the electrode, if the defect of joint bolt is found, the connection should be made after replacement
5. After the electrodes are connected, if there is a gap in the connection surface, it is important to find out the reason
6. The electrode should be used vertically.
7. The electrode holder shall be sandwiched between the upper and lower levels of the top electrode, and shall not be sandwiched between the warning line and the middle electrode. Otherwise, the electrode column is easily broken
8. The raw materials and production techniques of different manufacturers may vary. The physical and chemical properties of the electrode are also different, and it is recommended that the joints and electrodes produced by different manufacturers should not be used in a different way.
High Power Graphite Electrode,Die-Cast Graphite Electrodes,Bone Bit Graphite Electrod,Thermal Graphite Fengcheng Ruixing Carbon Products Co., Ltd , https://www.lnfcrxts.com
The school bus in the scope of this recall has defects such as interference between the front wheel and the brake hose, loosening of the fixing bolt of the steering wheel, and insufficient connection strength between the bumper and the vehicle body. The producers are developing recall measures for the above-mentioned defects, and conduct free investigation and recall of vehicle defects in the scope of the recall to eliminate potential safety hazards.
The recall was carried out under the influence of the AQSIQ defect investigation. At the end of April 2015, the General Administration of Quality Supervision, Inspection and Quarantine immediately organized the Defective Product Management Center of the General Administration of Quality Supervision, Inspection and Quarantine to conduct a defect investigation according to the situation reflected by the relevant departments of Hunan Province, and organized some provincial and municipal quality supervision bureaus and technical institutions to hold a case meeting. The investigation confirmed that the Yellow River brand school bus has many defects. On May 19, the Law Enforcement Division of the General Administration of Quality Supervision, Inspection and Quarantine notified the producers to implement the recall in accordance with the Regulations on the Management of Defective Automobile Product Recalls. The producer decided to recall all the school buses produced. The General Administration of Quality Supervision, Inspection and Quarantine will organize the Defective Product Management Center and the relevant local quality supervision departments to supervise the recall activities and urge producers to carry out major safety hazard investigations.
In this recall, the producer will issue a recall notice to all car owners and organize relevant commercial vehicle service outlets to recall the vehicle. Users can call the customer service hotline 4007519777, 0531-85581281, 0531-85581247 for consultation. The owner can also visit the website of the AQSIQ (), the website of the AQSIQ Defective Product Management Center (), and the China Auto Recall Network (). ) and pay attention to the WeChat public account (AQSIQDPAC) for more information. In addition, you can also call the AQSIQ Defective Product Management Center hotline, 010-65537365 to reflect the problems in the implementation of the recall activities or submit defects.