1) thread test with the principles of tolerance: in, teeth along the thread of the distribution of tolerance zone map and the diameter tolerance numerical table. Chinese believe that the majority of t..
10-06-09http://www.hztrading.com/Knowledge/2010/06/09/Technical_standards_on_the_thread_of_the_two_Misunderstanding/
Parts of a macro-test failures Macro-examination of two major issues to resolve, the first attribute fault, the fault is the qualitative reasons. It is the fault for the analysis of the foundation, th..
10-06-09http://www.hztrading.com/Knowledge/2010/06/09/Mechanical_Failure_Analysis/
Phenomenon and the reasons for failure: 1, start with fixed Diesel Motor (1) battery voltage circuit connection is bad or inadequate (2) can not activate the electrical gear and flywheel ring gear mes..
10-06-09http://www.hztrading.com/Knowledge/2010/06/09/The_main_engine_don_t_start/
(1) cause of the malfunction may be: 1) supply voltage is too low; 2) triangle to misuse of the winding access to a Y-shaped; 3) squirrel-cage rotor in a welding or broken; 4) when winding turns aroun..
10-06-09http://www.hztrading.com/Knowledge/2010/06/09/Starting_motor_difficulties_rated_load_and_low_speed_after_the_cause_of_the_malfunction_A/
Humid environment in the motor idle, the moisture will motor around the core and winding insulation surface exposed to moisture and may be condensed into mist, resulting in decreased electrical insula..
10-06-09http://www.hztrading.com/Knowledge/2010/06/09/Humid_environment_in_the_short_term_idle_motor_drying_methods_which/
(1) cause of the malfunction may be: 1) Wound-rotor winding circuit in a phase; 2) Wound-collecting ring short-circuit electrical device connection is bad; 3) Wound-rotor in a three-phase motors of th..
10-06-09http://www.hztrading.com/Knowledge/2010/06/09/Motor_idling_or_when_there_are_indicators_Ammeters_unstable_swinging_the_cause_of_the_malfunctionA/
1) cause of the malfunction may be: 1) motor winding insulation exposed to moisture or serious aging; 2) grounding bad; 3) the power cable and earthing made a mistake; 4) The Dock serious dirt; 5) Yin..
10-06-09http://www.hztrading.com/Knowledge/2010/06/09/Motor_Shell_charged_the_cause_of_the_malfunction_and_treatment/
1. Why are the motor burned more easily than in the past As insulation to technical progress, in both the design of motors to increase output and reduce the volume of requests, so that new motor the..
10-06-09http://www.hztrading.com/Knowledge/2010/06/09/Motor_protection_of_common_sense/
Ex Motor is a flammable and explosive plant can be used in a motor, no running EDM. Ex Motor mainly used for coal, oil and gas, petrochemical and chemical industry. In addition, textile, metallurgy, c..
10-06-09http://www.hztrading.com/Knowledge/2010/06/09/What_is_the_explosion_proof_electrical/
Motor a level of security Motor level of security (1) the definition and classification Level of security (1) referred to the definition 0 no protection has no specific protection 1 protection than 50..
10-06-09http://www.hztrading.com/Knowledge/2010/06/09/Motor_a_level_of_security/
