Search found 5 matches
- Thu Feb 20, 2020 10:20 am
- Forum: Plating and Pressing
- Topic: Pressing defects
- Replies: 11
- Views: 3877
Re: Pressing defects
"But how it comes the two records are flawless and the next one has the stitching marks again?" This question also worried us. Some kind of mysticism. The rings were already used, worn out when we bought the machine. The machine was also inoperative, everything was restored. We did not have new orig...
- Tue Feb 11, 2020 7:35 am
- Forum: Plating and Pressing
- Topic: Pressing defects
- Replies: 11
- Views: 3877
Re: Pressing defects
I noticed that our cooling water is too low. They raised the water temperature to the recommended 20 degrees and our problem almost completely disappeared. It seems to me that the low temperature of the cooling water and the strongly worn clamping rings are the cause of our problems.
- Mon Jan 20, 2020 8:58 am
- Forum: Plating and Pressing
- Topic: Pressing defects
- Replies: 11
- Views: 3877
Re: Pressing defects
Our problem looks like type 1. There are defects that are similar to type 2, but are always located in one place, in the region of the last track. They look like a large shell with half the width of the track, or as a strip of small shells that can be seen only by shining a flashlight. This happens ...
- Mon Jan 13, 2020 3:13 am
- Forum: Plating and Pressing
- Topic: Pressing defects
- Replies: 11
- Views: 3877
Re: Pressing defects
Defects on Records Only. They look like risks, sometimes they are scattered over a large recording surface, sometimes they are concentrated in a spot of 1-2 cm. Under the microscope it is visible that they are located between the tracks, and sometimes they touch their edge, which clicks when playing.
- Fri Jan 10, 2020 7:24 am
- Forum: Plating and Pressing
- Topic: Pressing defects
- Replies: 11
- Views: 3877
Pressing defects
Hello, I really hope that they will help us here with this problem. We are a small record pressing plant in Russia. We are pressing records on Alpha Toolex AD1202 presses. Records often cause defects such as in the photo. When listening, a crunch or click occurs. Mostly such defects occur when press...