Atik Islam

16 Questions 16 Answers 0 Followers

Questions related from Atik Islam

How can I observed the metallography of pure grade aluminum tube?

Need to know the procedure of pure grade 1070 grade aluminum tube.

04 April 2023 9,409 3 View

Is Blackish copper tube can be useable?

The copper condenser is stored in dry air conditioning. After 7 months the copper condenser turns into blackish color on the tube surface. 2. Under the foil tape the tube could not /be observed...

10 November 2022 6,075 0 View

Have any corrosion effect on twist Aluminum tube?

I have attached an Aluminum Evaporator flaring tube picture. I want to know if to have any corrosion effect of this twisted Aluminum tube.

03 October 2022 2,782 3 View

Have any effect Copper condenser and side sheet?

In the refrigerator, the Copper condenser is contact with the PCM sheet. but some fridge we see that the copper tube damage or leakage or big hole. Below I given the picture & vedio of the...

14 September 2022 2,358 0 View

Why 0% Silver content in copper to copper brazing joints?

In-Refrigeration plant, needed copper-copper brazing joints. The chemical Composition of brazing rod is Phosphorous : 7-7.5 % Copper : Remaining

14 March 2022 9,010 1 View

Why Blackish color created on evaporator aluminum tube?

The grade of this aluminium tube is 1060 , used as a evaporator in refrigerator. Below given the picture of the tube.

11 September 2021 5,910 4 View

What is the effect of ductility on corrosion?

If we increase or decrease the ductility of 1060 grade aluminum tube then then what is the effect on the corrosion property.

09 September 2021 4,896 4 View

How can I Identification Coating Chemical used on MS Tube?

Below I given a MS Tube which use on coating on this tube. But I do not know coating element name. How can I know which chemical element of this caoting. This is a MS tube which is used as condenser .

30 August 2021 9,069 3 View

Is tomato or Bananas harm full for refrigerator ?

If I keeping tomato or Banana in No frost refrigerator than is it harmful for Aluminum Fin Evaporator. My Question: is the tomato or Bananas vapor extract gas harmful for Aluminum Fin Evaporator...

11 August 2021 2,337 9 View

How can check the quality/Durability/Corrosion protection quality of ED (Electro Deposition) Paint?

Below I given a Picture of ED Coated tube.

12 July 2021 9,193 4 View

Which ASTM Standard I can test the Quality of ED Coating on tube?

Below I given the ED Coated tube?

12 July 2021 7,252 6 View

Why this types of pitting corrosion occur in the refrigerant evaporator aluminum tube? Have any compositional effect?

Below I given the picture of the refrigerant evaporator aluminum tube. How can I find out the root cause of this type of corrosion, and how can I prevent or Increase the corrosion resistance of...

13 June 2021 7,153 9 View

Which is the best aluminum tube chemical composition that prevents the attack of crevice corrosion?

This aluminum tube used in refrigerator as an evaporator. Many complain found that pitting or crevice corrosion.How can I prevents this problem.

20 May 2021 5,318 3 View

How can I measured the anodized coating thickness on aluminum tube?

Which standard can I measure the anodized coating thickness on the aluminum tube? This tube is used in the fin evaporator in the refrigerator. I need the ASTM standard for the measurement of...

19 May 2021 4,063 7 View

Why pitting corrosion occur on aluminum evaporator used in refrigerator? How can I prevent or Solve this type of failure?

Hera 1060 grade aluminum tube used as an evaporator in refrigerator . Why leakage occur on this aluminum tube. Below I given some picture .

05 May 2021 8,264 4 View

0.64mm Stainless Spring wire

Which property is very important for stainless steel Spring wire ( 0.64mm) 1.Tensile strength 2.Yield Strength 3.Elongation This type of spring wire used in Refrigerator door switch. Some...

01 January 1970 1,301 3 View