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Introduction
This test method covers a laboratory screening procedure for evaluating the effectiveness of engine coolants in combating corrosion of aluminum casting alloys under heat-transfer conditions that may be present in aluminum cylinder head engines.
Characteristic
1. ASTM D4340 Corrosion Test Apparatusr consists of a support and one or two thermal corrosion cell, with a working pressure of 40 psi and a working temperature up to 160ºC.Electronic timer controls testing time, and electronic temperature controller controls temperature;
2. The instrument casing is made of ceramic coated refined steel surface, which is durable;
3. There is a protective cover outside the corrosion cell;
4. The thermal corrosion cell is made of heat-resistant glass,the cover and bottom are made of stainless steel material;
5. The stainless steel heat conducting rod is controlled by a 950W heater which is regulated by a Solid-state relay;
6. The components installed on the top of the corrosion cell, such as the vent valve, pressure reducing valve, and pressure gauge, are all made of stainless steel material;
7. The injection port is covered with a sealing cap, and four stainless steel columns are connected to the upper cover and base;
8. The temperature controller of the instrument is an intelligent regulator that integrates temperature control and display, and is equipped with a microprocessor for PID adjustment. The sensor is a K-type thermocouple;
9.For dual position instruments, all components have two sets;
10. The ASTM D4340 Corrosion Test Apparatus has over temperature safety protection function;
11. Electronic timer can preset testing time. Upon reaching the time, the instrument will automatically stop heating, and the two corrosion pools can be tested separately without interfering with each other;
Technical specifications
| 1 | Applicable standard | ASTM D4340,SH/T0620 |
| 2 | Heating method | electric plate heating |
| 3 | Temperature control method | digital display PID temperature controller |
| 4 | Temperature control range | room temperature~160 ° C |
| 5 | Temperature control accuracy | ±0.1ºC |
| 6 | Timing method | digital display timer |
| 7 | Pressure display | pressure gauge |
| 8 | Overall power | 200W |
| 9 | Working power supply | AC220V/50HZ |
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