This standard specifies technical requirements, inspection rules, marking and packaging. This standard applies to closed type glow plugs with a power supply voltage of 12V and 24V for cold start of diesel engines (hereinafter referred to as glow plugs). JB/T 5783-1991 Technical conditions for closed type glow plugs JB/T5783-1991 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
Technical Conditions for Sealed Glow Plugs
1 Subject Content and Scope of Application
This standard specifies technical requirements, inspection rules, marking and packaging. JB.5783-91
Partial Alternative Police JB3259-83
This standard applies to sealed glow plugs (hereinafter referred to as glow plugs) with a power supply voltage of 12V and 24V for cold starting of diesel engines. 2 Reference Standards
JB3259 Type and Dimensions of Sealed Glow Plugs JB5784 Test Methods for Sealed Glow Plugs
GB2828 Batch Inspection Counting Sampling Procedure and Sampling Table Type and Dimensions
The type and dimensions of glow plugs shall comply with the provisions of JB3259 standard. 4 Technical Requirements
Glow plugs shall be manufactured in accordance with this standard and drawings approved by the prescribed procedures. 4.2 Metal parts and insulators shall not have cracks, and the threaded parts shall not have missing teeth, deformation and other appearance defects that affect product performance. 4.3 Sealing performance
The glow plug is subjected to a pressure of 4MPa (40.8kgf/cm*) for 15s, and continuous leakage is not allowed in all parts of the glow plug. 4.4 Cold resistance
When the room temperature is 23±5℃, the cold resistance value of the glow plug with a power supply voltage of 12V shall not be less than 0.1α; the cold resistance value of the glow plug with a power supply voltage of 24V shall not be less than 0.4.α. 4.5. Temperature rise test
When the room temperature is 23±5℃, the surface temperature of the glow plug within 8mm of the end of the heating element (as shown in Figure 1) reaches 850℃ and 1000℃, the power-on time shall meet the requirements of Table 1. Temperature measuring part
Approved by the Ministry of Machinery and Electronics Industry on October 17, 19914
Implementation on October 1, 1992
Power supply voltage
Working current
Quick type glow plug
Ordinary type glow plug
Ordinary type glow plug
JB5783--91
Power-on time to reach 850C
The working current of the glow plug at its rated voltage ± 0.1V shall comply with the provisions of Table 2. Table 2
Power supply voltage
4.7 Overvoltage test
Quick type glow plug
Ordinary type glow plug
Ordinary type glow plug
At 20s
At 30s
Power-on time to reach 1000℃
At 60s
After the glow plug has been subjected to a test voltage of 125% of its rated voltage for 15s, the glow plug shall still comply with the corresponding provisions of Articles 4.5 and 4.6 of this standard.
4.8 Overload test
Apply three different test voltages to the glow plug in the following order, each lasting 2 minutes. After the test, the glow plug shall still comply with the corresponding provisions of Articles 4.5 and 4.6 of this standard.
a. ,- Rated voltage of glow plug
110% of the rated voltage of glow plug;
,115% of the rated voltage of glow plug.
4.9 Power-on and power-off test
When the power plug is 10% higher than its rated voltage, the power supply voltage of 12V fast-type glow plug is powered on for 15s and powered off for 15s; the power supply voltage of 12V ordinary-type glow plug is powered on for 25s and powered off for 25s; the power supply voltage of 24V ordinary-type glow plug is powered on for 50s and powered off for 50s, and this is repeated continuously. The number of power-on and power-off tests shall be agreed upon by the supply and demand parties. After the power-on and power-off tests, the glow plug should not show any abnormal phenomenon. Vibration test
The alarm test requirements of the glow plug shall be agreed upon by the supply and demand parties. 4.11 Random durability test
The durability of the glow plug varies according to the engine type, and its requirements shall be agreed upon by the supply and demand parties. Inspection rules
5.1· Glow plugs must be inspected and qualified by the manufacturer's inspection department before leaving the factory, and a product quality certificate should be attached. 5.2 Users have the right to inspect and accept products in accordance with the inspection rules and test methods specified in this standard. JB5783-91
5.3 Glow plugs should be inspected in batches according to model. Each batch is made under the same conditions, and the number should be within the range of 281 to 3200. 5.4 The test method for glow plugs shall be carried out in accordance with the corresponding provisions of JB5784. 5.5 The inspection of glow plugs is divided into factory inspection and type inspection. 5.5.1 Factory inspection
Randomly select samples according to GB2828 and Table 3, and inspect them according to the procedures specified in Table 3. Table 3
Appearance and dimensions
Sealing performance
Temperature rise test
Off-line and on-line tests
Test basis
Article 3.4 and 1.4.2 of this standard
Article 4.3 of this standard
Article 4.5 of this standard
Article 4.9 of this standard
Sampling plan
Secondary sampling
Sample sizebzxz.net
Qualified quality level
5.5.2 When inspecting appearance and dimensions, if the requirements of this standard are not met, it is allowed to inspect each piece one by one. According to
Inspection level
5.5.3 Type inspection
Inspection shall be carried out according to the items and sequence specified in Table 4, and shall comply with the provisions of the technical requirements of this standard. Normally produced products shall be subject to type inspection at least once a year: when new products are finalized, and when the structure, raw materials, formula and process of old products are significantly changed, type inspection shall be carried out. If any of the type inspection items does not meet the requirements of this standard, the type inspection shall be considered unqualified. Table 4
Test items
Appearance and dimensions
Sealing performance
Cold resistance
Temperature rise test
Working current
Overvoltage test
Overload test
Power-off and power-on test
Vibration test
Random durability test
6 Marking and packaging
6.1 Each glow plug should be marked with:
a..Manufacturer’s name or trademark;
Model, rated voltage.
6.2 Each package box should be marked with:
Manufacturer’s name and trademark;
Test basis
Article 3, 4.1 and 4.2 of this standard
Article 4.3 of this standard
Article 4.4 of this standard
Article 4.5 of this standard
Article 4.6 of this standard
Article 4.7 of this standard
Article 4.8 of this standard
Article 4.9 of this standard
Article 4.10 of this standard
Article 4.11 of this standard
Number of samples
8 after test No. 1
Test No. 1 and 2 8 pieces after test No. 1, 2, 3
8 pieces after test No. 1, 2, 3, 4
4 pieces after test No. 1, 2, 3, 4, 5
4 pieces after test No. 1, 2, 3, 4, 5
2 pieces after test No. 1
Take additional samples as needed
Take additional samples as needed
b. Product name, model and rated voltage
6.3 The following should be marked on the packaging box for multiple pieces: a. Manufacturer's name and trademark;
Product name, model and rated voltage;
Product quantity;
Attached with product factory certificate of conformity.
6.4 The packaging box should be marked with:
Manufacturer name and trademark;
Product name, model, rated voltage and quantity: c.
"Handle with care", "Moisture-proof" and other words and signs. JB:5783-91
6,5 Product packaging boxes can be made of cartons, wooden boxes or other packaging materials, and their total weight should not exceed 20kg.6.6 For products exported or with special requirements, their markings and packaging can be agreed upon by both the supply and demand parties. Additional notes:
This standard was proposed and managed by the Nanjing Spark Plug Research Institute of the Ministry of Machinery and Electronics Industry. This standard was drafted by the Nanjing Spark Plug Research Institute of the Ministry of Machinery and Electronics Industry. The main drafters of this standard are Gao Fenggang, Ni Lingzhen and Zhang Minsheng.
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